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Study sets matching "ap statistics"

29 terms
AP Statistics Probability
Fundamental Counting Principal
Fundamental Counting Principal
permutation
permutation key words
"How many ways?"
certain procedure (P) can be broken into a number (n) of succ…
An r-permutation of a set of n elements is an ORDERED selecti…
officers, place, arranged, line up
Fundamental Counting Principal
"How many ways?"
Fundamental Counting Principal
certain procedure (P) can be broken into a number (n) of succ…
22 terms
AP Statistics
Margin of Error
Confidence Interval for a Population M…
Confidence Interval for a Population P…
Margin of Error Formula
If we repeated many samples, the [parameter] will be within ±…
x̄ ± z*(σ/√n)
p̂ ± z*(√[p̂q̂/n])
The Formula for Confidence Intervals that Comes After the sta…
Margin of Error
If we repeated many samples, the [parameter] will be within ±…
Confidence Interval for a Population M…
x̄ ± z*(σ/√n)
18 terms
AP STATISTICS
What
Who
Why
When
What is the graph describing.(variables)
Who is the survey about?
The purpose of the survey. (any bias)
When did the survey take place?
What
What is the graph describing.(variables)
Who
Who is the survey about?
11 terms
AP Statistics
With what shape is the mean smaller th…
When finding the area between two devi…
When writing about unusual features on…
When two variables are absent in two e…
Skewed left
Use the result of the smaller one as the min and the result o…
Compare/link it to the center, range/IQR, and or shape
Use substitution
With what shape is the mean smaller th…
Skewed left
When finding the area between two devi…
Use the result of the smaller one as the min and the result o…
35 terms
AP Statistics
qualitative variable
quantitative variable
continuous variable
discrete variable
variables that take on values that are names or labels
variables that take on values that are a measurable quanity
variables which can take on any value within it's range
variables which cannot take on any value within it's range
qualitative variable
variables that take on values that are names or labels
quantitative variable
variables that take on values that are a measurable quanity
8 terms
AP Statistics Vocab C6 TPS4
Interpreting Expected Value/Mean
Mean and Standard Deviation of a Discr…
Mean and Standard Deviation of a Diffe…
Mean and Standard Deviation of a Sum o…
Interpreting Expected Value/Mean
Mean and Standard Deviation of a Discr…
20 terms
AP STATISTICS FORMULAS
Mean
IQR
Standard Deviation
Measures of Position
Sum of observations/Number of Observations
Q3-Q1... Resistant to outliers
Common measure of spread. How far each observation is from th…
Percentiles: Percentile tells us a data point's position rela…
Mean
Sum of observations/Number of Observations
IQR
Q3-Q1... Resistant to outliers
61 terms
AP Statistics Vocabulary
Symmetric
Parameter
Statistic
Median
data on which both sides are fairly the same shape and size.…
value of a population (typically unknown)
a calculated value about a population from a sample(s).
the middle point of the data (50th percentile) when the data…
Symmetric
data on which both sides are fairly the same shape and size.…
Parameter
value of a population (typically unknown)
79 terms
Ap Statistics: Semester Exam
S.O.C.S.
Shape
Outlier
Center
Shape, Outlier, Center, Spread
Skewed/symmetrical
Q1-(1.5xIQR) and Q3+(1.5xIQR)
Mean (average) and Median (Middle)
S.O.C.S.
Shape, Outlier, Center, Spread
Shape
Skewed/symmetrical
27 terms
AP Statistics Formulas
Sample Mean
Sample Standard Deviation
Pooled Standard Deviation
Least Squares Regression Line
Sample Mean
Sample Standard Deviation
41 terms
AP Statistics: Chapter 6
Random
Independent
Sample Space
With replacement the denominator is...
Individual outcomes are uncertain, however there is a regular…
The outcome of one trial does not influence/effect the outcom…
The set of all possible outcomes. Can be presented as a list…
Constant
Random
Individual outcomes are uncertain, however there is a regular…
Independent
The outcome of one trial does not influence/effect the outcom…
40 terms
AP Statistics Symbols
Predicted y-value
y-intercept
Slope
Correlation coefficient
Predicted y-value
y-intercept
36 terms
AP Statistics: Chapter 9
Parameter
Statistics
Sampling variability
Variation in sampling variability is...
A number that describes the population (μ, σ, p)
A number that describes the sample (x̅, s, p̂)
The value of a statistic varies in the repeated random sampling
Normal and expected
Parameter
A number that describes the population (μ, σ, p)
Statistics
A number that describes the sample (x̅, s, p̂)
14 terms
AP Statistics
Residual
s definition
s equation
r
observed-predicted
Line of best fit is typically off by "s" for each observation
Radical (€residuals^2)/n-2
Correlation
Residual
observed-predicted
s definition
Line of best fit is typically off by "s" for each observation
145 terms
AP Statistics
Which term defines "Using the data to…
Which term defines "Summarizing a samp…
What kind of data is used in bar charts?
Are titles and labels necessary?
Statistical inference and analysis
Descriptive statistics
Qualitative (Categorical)
Yes
Which term defines "Using the data to…
Statistical inference and analysis
Which term defines "Summarizing a samp…
Descriptive statistics
95 terms
AP Statistics Midterm Vocabulary
Probability
Random
Trial
Outcome
The likelihood of something occurring . The proportion of tim…
An order/pattern that may not be recognized in the short term
One observation of a random phenomenon
The value of a trial
Probability
The likelihood of something occurring . The proportion of tim…
Random
An order/pattern that may not be recognized in the short term
75 terms
AP Statistics - Chapter 1
Pie Chart
Bar Graph
Quantitative Data
What makes a Good Graph?
Used with categorical data and it must add up to 100%... Very r…
+ Used with Categorical Data... + Usually Shows Frequency (Coun…
Data from surveys, experiments, and observational studies
+ Title... + Axes Labeled... + Constant Scale
Pie Chart
Used with categorical data and it must add up to 100%... Very r…
Bar Graph
+ Used with Categorical Data... + Usually Shows Frequency (Coun…
21 terms
AP Statistics (Ch. 1)
Histogram
Statistics
Variability
Descriptive Statistics
A graph of vertical bars in intervals representing the freque…
The science of collecting, organizing, analyzing, and interpr…
The extent to which samples differ from one another and from…
The methods of properly organizing and summarizing data that…
Histogram
A graph of vertical bars in intervals representing the freque…
Statistics
The science of collecting, organizing, analyzing, and interpr…
126 terms
AP Statistics Notecards
Sample Standard Deviation
SRS
convenience
Point Estimate
σ/√n
in this sample each person has an equal chance of being selec…
sample where we sample the most convenient individuals
another term for the statistic (mean, probability, etc.)
Sample Standard Deviation
σ/√n
SRS
in this sample each person has an equal chance of being selec…
31 terms
Unit 3: AP Statistics
What is meant by random behavior?
What is the purpose of a simulation?
In the short run, probability is _____…
A subset of outcomes from the sample s…
Not chaotic behavior; a tendency to overcome bias (unpredicta…
To imitate random chance behavior.
Unpredictable.
Event.
What is meant by random behavior?
Not chaotic behavior; a tendency to overcome bias (unpredicta…
What is the purpose of a simulation?
To imitate random chance behavior.
143 terms
AP Statistics Exam Terms
alternative hypothesis
association
bar graph
bimodal
the theory that the researcher hopes to confirm by rejecting…
when some of the variability in one variable can be accounted…
graph in which the frequencies of categories are displayed wi…
distribution made with two or more most common values (peaks-…
alternative hypothesis
the theory that the researcher hopes to confirm by rejecting…
association
when some of the variability in one variable can be accounted…
36 terms
AP Statistics Chapter 4
What is the population in a statistica…
What is the sample in a statistical st…
What is a convenience sample, and why…
What is a bias?
the entire group of individuals about which we want information
part of the population from which we actually collect informa…
choosing individuals who are easiest to reach results. Howeve…
design of a statistical study that systematically favors cert…
What is the population in a statistica…
the entire group of individuals about which we want information
What is the sample in a statistical st…
part of the population from which we actually collect informa…
126 terms
AP Statistics Notecards
Sample Standard Deviation
SRS
convenience
Point Estimate
σ/√n
in this sample each person has an equal chance of being selec…
sample where we sample the most convenient individuals
another term for the statistic (mean, probability, etc.)
Sample Standard Deviation
σ/√n
SRS
in this sample each person has an equal chance of being selec…
AP Statistics
What is Statistics?
What is variability?
What are 2 branches of AP STATS?
What are DESCRIPTIVE STATS?
The study of variability
Differences... how things differ. There is variability everyw…
Inferential and Descriptive
Tell me what you got! Describe to me the data that you collec…
What is Statistics?
The study of variability
What is variability?
Differences... how things differ. There is variability everyw…
38 terms
AP Statistics Chapter 6
random variable
discrete random variable
continuous random variable
How do you find the mean of a discrete…
takes numerical values that describe the outcomes of some cha…
describes a fixed set of possible values, and these outcome p…
it can take an infinite number of values, meaning it could be…
multiply each possible value by its probability, then add all…
random variable
takes numerical values that describe the outcomes of some cha…
discrete random variable
describes a fixed set of possible values, and these outcome p…
18 terms
AP Statistics Ch. 9
parameter
statistic
sampling variability
sampling distribution
a number that describes the population; in statistical practi…
a number that can be computed from the sample data without ma…
the value of a statistic varies in repeated random sampling
the distribution of values taken by the statistic in all poss…
parameter
a number that describes the population; in statistical practi…
statistic
a number that can be computed from the sample data without ma…
21 terms
AP Statistics - 1.2
dotplot
overall pattern
outlier
describing a distribution of quantitat…
individual values shown as a dot above its location on a numb…
shape, center, spread
individual value that falls outside the overall pattern
S- shape... O- outliers... C- center... S- spread
dotplot
individual values shown as a dot above its location on a numb…
overall pattern
shape, center, spread
12 terms
AP Statistics
What does "r" mean? What is its name?
What does r^2 mean? What is its name?
What is the equation of the least squa…
Place a value in x to produce y
There is a strong/mild/weak positive/negative linear relation…
_____% of the variability of (response variable) is due to th…
(predicted) y = a + bx where (predicted) y is the predicted (…
Solve
What does "r" mean? What is its name?
There is a strong/mild/weak positive/negative linear relation…
What does r^2 mean? What is its name?
_____% of the variability of (response variable) is due to th…
10 terms
AP statistics
What type of sampling design deals wit…
What are some advantages and disadvant…
If someone is having a survey and leav…
What is Convenience Sampling, and what…
Cluster Sample
Advantages- unbiased and easy... Disadvantages- Large variance,…
Undercoverage
It is asking people who are easy to talk to, but produces bia…
What type of sampling design deals wit…
Cluster Sample
What are some advantages and disadvant…
Advantages- unbiased and easy... Disadvantages- Large variance,…
9 terms
AP Statistics - 1.1
frequency table
relative frequency table
roundoff error
pie charts, bar graphs
distribution of a categorical variable, lists the categories…
distribution of a categorical variable, lists the categories…
computational error due to rounding, ex: all numbers add to 9…
display the distribution of a categorical variable
frequency table
distribution of a categorical variable, lists the categories…
relative frequency table
distribution of a categorical variable, lists the categories…
25 terms
AP Statistics
How does an experiment differ from an…
What is the difference between samplin…
Why are voluntary response samples unr…
Why might convenience sampling be unre…
In an experiment we impose some treatments on individuals in…
In sampling, you study a part of the population in order to g…
Voluntary response samples tend to be unreliable because indi…
Since it involves choosing individuals who are easiest to rea…
How does an experiment differ from an…
In an experiment we impose some treatments on individuals in…
What is the difference between samplin…
In sampling, you study a part of the population in order to g…
10 terms
AP Statistics
A researcher carefully computes the co…
Given r=0.543, what is r²? After findi…
Why is linear regression sometimes ref…
Fisherman have been recording the dead…
A error was made! All correlation coefficients: −1 ≤ r ≤ 1.
0.5432 = .295 ... .295 --> 29.5%
Mathematically the coefficients are determined from computing…
What is the slope? It is m = 9.607. ... What is the meaning of…
A researcher carefully computes the co…
A error was made! All correlation coefficients: −1 ≤ r ≤ 1.
Given r=0.543, what is r²? After findi…
0.5432 = .295 ... .295 --> 29.5%
15 terms
AP Statistics Probability
Probability
Trial
Outcome
Event
A number between 0 and 1 that reports the likelihood of the e…
A single attempt
Value measured, observed, or reported for an individual insta…
A collection of outcomes
Probability
A number between 0 and 1 that reports the likelihood of the e…
Trial
A single attempt
16 terms
AP statistics: observational studies
stratified random sampling (SRS)
stratified
cluster
systematic
every group of size n has an equal chance of being selected (…
first divide into groups (strata), then randomly select n fro…
first divide into groups (clusters), then randomly select n g…
randomly select first subject, then select every kth subject…
stratified random sampling (SRS)
every group of size n has an equal chance of being selected (…
stratified
first divide into groups (strata), then randomly select n fro…
12 terms
AP Statistics 8.1
point estimator
point estimate
confidence interval equation
margin of error
statistic that provides an estimate of a population parameter
value of that statistic from a sample; "best guess" at the va…
estimate +/- margin of error; # </= mean </= #
how close the estimate tends to be to the unknown parameter
point estimator
statistic that provides an estimate of a population parameter
point estimate
value of that statistic from a sample; "best guess" at the va…
114 terms
AP Statistics Exam Review
What is a dotplot?
What's the difference between categori…
What is a bar chart?
What are histograms?
A graphical display which shows "dots" for each point. It's g…
Categorical data fits into various categories; whereas, quant…
A display for categorical data which indicates frequencies or…
Histograms are good for large quantitative data sets- either…
What is a dotplot?
A graphical display which shows "dots" for each point. It's g…
What's the difference between categori…
Categorical data fits into various categories; whereas, quant…
47 terms
AP Statistics Chapter 1 Vocabulary
biased
parameter
blinding
average
any systematic failure of a sampling method to represent its…
a number that is used to represent a population characteristi…
not telling participants which treatment a subject is getting
Also called the mean; a number that describes the central ten…
biased
any systematic failure of a sampling method to represent its…
parameter
a number that is used to represent a population characteristi…
100 terms
AP Statistics Exam Review
What is a dotplot?
What's the difference between categori…
What is a bar chart?
What are histograms?
A graphical display which shows "dots" for each point. It's g…
Categorical data fits into various categories; whereas, quant…
A display for categorical data which indicates frequencies or…
Histograms are good for large quantitative data sets- either…
What is a dotplot?
A graphical display which shows "dots" for each point. It's g…
What's the difference between categori…
Categorical data fits into various categories; whereas, quant…
38 terms
AP Statistics Chapter 6
random variable
discrete random variable
continuous random variable
How do you find the mean of a discrete…
takes numerical values that describe the outcomes of some cha…
describes a fixed set of possible values, and these outcome p…
it can take an infinite number of values, meaning it could be…
multiply each possible value by its probability, then add all…
random variable
takes numerical values that describe the outcomes of some cha…
discrete random variable
describes a fixed set of possible values, and these outcome p…
114 terms
AP Statistics Exam Review
What is a dotplot?
What's the difference between categori…
What is a bar chart?
What are histograms?
A graphical display which shows "dots" for each point. It's g…
Categorical data fits into various categories; whereas, quant…
A display for categorical data which indicates frequencies or…
Histograms are good for large quantitative data sets- either…
What is a dotplot?
A graphical display which shows "dots" for each point. It's g…
What's the difference between categori…
Categorical data fits into various categories; whereas, quant…
190 terms
AP Statistics: Chapters 1-6A
individuals
variable
categorical variable
quantitative variable
-the objects described by a set of data... -they may be people,…
-any characteristic of an individual... -can take different valu…
-places an individual into one of several groups or categorie…
-takes numerical values for which it makes sense to find an a…
individuals
-the objects described by a set of data... -they may be people,…
variable
-any characteristic of an individual... -can take different valu…
63 terms
AP Statistics Semester 1
Simple random sample (SRS)
Stratified random sample
Systematic random sample
Random cluster sample
A sample where n individuals are selected from a population i…
A sample in which simple random samples are selected from eac…
A sample where every nth individual is selected from a list o…
Population is divided into subgroups then the entire subgroup…
Simple random sample (SRS)
A sample where n individuals are selected from a population i…
Stratified random sample
A sample in which simple random samples are selected from eac…
29 terms
Chapter 2- AP STATISTICS
Pth percentile
Cumulative frequency
To make a cumulative relative frequenc…
Standardized Value (z-score)
Of a distrubution is the value with p percent of the observat…
Add the counts in the frequency column for the current class…
Plot a point corresponding to the cumulative relative frequen…
If x is an observation from a distribution that has a known m…
Pth percentile
Of a distrubution is the value with p percent of the observat…
Cumulative frequency
Add the counts in the frequency column for the current class…
11 terms
AP Statistics Chapter 3 Vocabulary
Frequency table
Relative frequency table
Distribution
Area principle
lists the categories in a categorical variable and gives the…
A frequency table that gives percentage values of each category
gives the possible values of the variable and the relative fr…
In a statistical display, each data value should be represent…
Frequency table
lists the categories in a categorical variable and gives the…
Relative frequency table
A frequency table that gives percentage values of each category
24 terms
AP Statistics Symbols
Predicted y-value
y-intercept
Slope
Correlation coefficient
Predicted y-value
y-intercept
21 terms
AP Statistics Chapter 2 Vocabulary
Frequency
Histogram
Relative Frequency
Interquartile Range
the number of times a value of the data occur
a graphical representation in x-y form of the distribution of…
the ratio of the number of times a value of the data occurs i…
or IQR, is the range of the middle 50 percent of the data val…
Frequency
the number of times a value of the data occur
Histogram
a graphical representation in x-y form of the distribution of…
AP Statistics Chapter 6
random variable
discrete random variable
continuous random variable
How do you find the mean of a discrete…
takes numerical values that describe the outcomes of some cha…
describes a fixed set of possible values, and these outcome p…
it can take an infinite number of values, meaning it could be…
multiply each possible value by its probability, then add all…
random variable
takes numerical values that describe the outcomes of some cha…
discrete random variable
describes a fixed set of possible values, and these outcome p…
11 terms
AP Statistics Vocab C3 TPS4
Interpret LSRL Slope "b"
What is an Outlier?
Interpret LSRL y-intercept "a"
Interpret r^2
Interpret LSRL Slope "b"
What is an Outlier?
35 terms
AP Statistics Chapter 1: Data Analysis
Individuals
Variable
Categorical
Quantitative
Objects described by the set of data.
Characteristic of an individual.
(Qualitative) Places an individual into one of several catego…
Takes numeral values from which it makes sense to find an ave…
Individuals
Objects described by the set of data.
Variable
Characteristic of an individual.
19 terms
AP Statistics Chapter 3 Vocab
Explanatory Variable
Response Variable
Scatterplot
Direction
May help explain or predict changes in a response variable. T…
Measures an outcome of a study. The y value in a scatterplot.
Shows the relationship between two quantitative variables mea…
The movement of the overall pattern in a scatterplot. Reading…
Explanatory Variable
May help explain or predict changes in a response variable. T…
Response Variable
Measures an outcome of a study. The y value in a scatterplot.
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