# Study sets matching "mathematics statistics"

Study sets

Diagrams

Classes

Users

discrete data

box and whisker plot

Histogram

bar graph

A number is recorded for a discrete numerical variable.

Visual display of median, UQ,LQ, minimum value and maximum val…

Bars are joined together

Bars are separated

discrete data

A number is recorded for a discrete numerical variable.

box and whisker plot

Visual display of median, UQ,LQ, minimum value and maximum val…

Statistics (Plural)

Statistics (Singular)

Statistik

Gottfried Achenwall

pertains to numerical date or figures that can be presented an…

is a branch of Science that deals with the collection, tabulat…

the etymology of the word "statistics"

German political scientist who popularized the word "Statistik"

Statistics (Plural)

pertains to numerical date or figures that can be presented an…

Statistics (Singular)

is a branch of Science that deals with the collection, tabulat…

Step 1

Step 2

Step 3

Step 4

A real world problem is observed.

A mathematical model is devised.

The mathematical model is used to make predictions about the e…

Experimental data is collected from the real world.

Step 1

A real world problem is observed.

Step 2

A mathematical model is devised.

Sensitivity vs Specificity

Positive Predictive Value (PPV) vs Nega…

Contingency table

Odds Ratio (OR) vs Risk Ratio (RR, AKA…

These terms describe the ability of a DISEASE to be detected b…

Describes the ability of a TEST to detect by a disease... PPV: p…

Cases Controls ... Exposed a b PPV ... Unexposed c d NPV ... Sensitivi…

OD: ratio of ODDS of an event occurring in one group vs the od…

Sensitivity vs Specificity

These terms describe the ability of a DISEASE to be detected b…

Positive Predictive Value (PPV) vs Nega…

Describes the ability of a TEST to detect by a disease... PPV: p…

Graphing

y = mx + c

mx

X and Y Intercepts

y/x = mx + c

y= Y-Intercept... x= X-intercept... m= Gradient... c= Constant

Gradient- Rate of change, unit cost of money

X-Intercept is when y=0... Y-Intercept is when x=0... Coordinates; (…

Graphing

y/x = mx + c

y = mx + c

y= Y-Intercept... x= X-intercept... m= Gradient... c= Constant

Statistic

Parameter

Random Sample

Sample Mean

function of the observable random variables in a sample and kn…

quantity or summary of the population such as the population m…

a sample of the data that are randomly drawn from some populat…

Statistic

function of the observable random variables in a sample and kn…

Parameter

quantity or summary of the population such as the population m…

Interpret "Least-squares line"

Interpret "Sample correlation coefficie…

Interpret "coefficient of dermination"

Determine if the optimal solution would…

The slope b=1.60 indicates that if [X] increased by 1, then it…

Since r=0.874, there is a strong positive linear correlation b…

About 70.48% varation of [Y] can be explained by corresponding…

Since [the profit on planting crops A = $7/m2)] is within the…

Interpret "Least-squares line"

The slope b=1.60 indicates that if [X] increased by 1, then it…

Interpret "Sample correlation coefficie…

Since r=0.874, there is a strong positive linear correlation b…

Bernoulli

P probability of success

0,1,2...

Geometric pmf

Discrete distribution to model things like a coin toss or a wi…

Parameters of bernoulli

Range of geometric

Px(k)=p(1-p)^k

Bernoulli

Discrete distribution to model things like a coin toss or a wi…

P probability of success

Parameters of bernoulli

outliers

tally

distribution

mode

Numbers that are much greater or much less than the other numb…

a method of counting where a single line represents one item c…

the way data is spread out across a range

a measure of center-the value that occurs most frequently in a…

outliers

Numbers that are much greater or much less than the other numb…

tally

a method of counting where a single line represents one item c…

How is the standard deviation found?

Formulas for Coefficient Variation?

Population/Deviation Symbol?

What is chebychevs Theorem?

Its the square root of standard deviation

Population δ÷µ×100% Sample S/x×100%

δ=Population Sx= Sample

1-1/k²

How is the standard deviation found?

Its the square root of standard deviation

Formulas for Coefficient Variation?

Population δ÷µ×100% Sample S/x×100%

Data

Types of Data

Raw Data

Raw Data

are collection of facts, such as values or measurements that c…

Raw Data... Grouped Data... Primary Data... Secondary Data

are also known as unprocessed data.

These refer to a collection of numbers, characters, or facts t…

Data

are collection of facts, such as values or measurements that c…

Types of Data

Raw Data... Grouped Data... Primary Data... Secondary Data

4 Levels of Measurement

Nominal Level

Ordinal Level

Interval Level

Nominal Level... Ordinal Level... Interval Level... Ratio Level

It simply labels or categorizes objects according to its use o…

In this level, data can be placed into categories and these ca…

In this level, starting point called absolute zero does not ex…

4 Levels of Measurement

Nominal Level... Ordinal Level... Interval Level... Ratio Level

Nominal Level

It simply labels or categorizes objects according to its use o…

Variables

Types of Variables

Independent Variable

Dependent Variable

Figures or any characteristics, numbers, or quantity that can…

Independent Variable... Dependent Variable... Extraneous Variable

The experimental factor that is manipulated; the variable whos…

The measurable effect, outcome, or response in which the resea…

Variables

Figures or any characteristics, numbers, or quantity that can…

Types of Variables

Independent Variable... Dependent Variable... Extraneous Variable

Quantitative Frequency Distibution Table

Quanlitative Frequency Distribution Tab…

Class Limits

Lower Class Limit

Are tabulated based on numerical clauses or interval.

Are tabulated based on description

Are the lowest and the highest values that can go in each clas…

Lowest value that can be entered in a class.

Quantitative Frequency Distibution Table

Are tabulated based on numerical clauses or interval.

Quanlitative Frequency Distribution Tab…

Are tabulated based on description

Mean

Median

Mode

Statistics

The average of the data points. ... Add all the data points; divi…

The middle point.... List all the data points in numerical order;…

The number seen the most.... Look at list, count how many times t…

using data to answer questions; not yes/no or single answer qu…

Mean

The average of the data points. ... Add all the data points; divi…

Median

The middle point.... List all the data points in numerical order;…

What is the domain for the following se…

What is the range of the following set…

In a function, what do you call the x c…

What form is this line equation in: y=5…

{0,2,3,4}

{-2,-1,2,6}

zeros

slope-intercept form

What is the domain for the following se…

{0,2,3,4}

What is the range of the following set…

{-2,-1,2,6}

Plan

Centre when medians are similar

Centre when medians are different

Spread

I used the 2015 Census at School database to get a random samp…

In these samples, I notice that the median (variable) of (grou…

In these samples, I notice that the median (variable) of (grou…

...

Plan

I used the 2015 Census at School database to get a random samp…

Centre when medians are similar

In these samples, I notice that the median (variable) of (grou…

Define the term 'Experiment'.

Define the term 'Event'.

Define the term 'Sample Space'.

Define the term 'Probability of an Even…

A repeatable process that gives rise to a number of outcomes.

A collection of one or more outcomes.

A set of all possible outcomes of an experiment.

Number of outcomes / total possible outcomes.

Define the term 'Experiment'.

A repeatable process that gives rise to a number of outcomes.

Define the term 'Event'.

A collection of one or more outcomes.