# 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…

Simple random sample

Stratified sampling

Systematic sampling

Cluster sampling

Every member of the population has a known and equal chance of…

Divide the population into different subgroups and then sample…

Every nth member in the population is selected to be in the sa…

Population is divided into subgroups, and a set of subgroups a…

Simple random sample

Every member of the population has a known and equal chance of…

Stratified sampling

Divide the population into different subgroups and then sample…

Bivariate data

Cluster

Frequency

Graph

A set of data that show the relationship between two variables.

A group of the same or similar elements gathered or occurring…

The number of times an event occurs within a specific time per…

A tool used to display the relationship between two quantitati…

Bivariate data

A set of data that show the relationship between two variables.

Cluster

A group of the same or similar elements gathered or occurring…

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;…

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…

Advantages of a Census

Disadvantages of a Census

Advantages of a Sample Survey

Disadvantages of a Sample Survey

- accurate representation... - unbiased

- large population = lots of time and energy... - can be expensiv…

- quicker and cheaper... - only option if some are lost/ damaged/…

- variability = not representative... - easily affected by size a…

Advantages of a Census

- accurate representation... - unbiased

Disadvantages of a Census

- large population = lots of time and energy... - can be expensiv…

population

census

sample

random sampling

whole set of items that are of interest

observes or measures every member of a population

a subset of the population which is used to find out informati…

every member of the population has an equal chance of being se…

population

whole set of items that are of interest

census

observes or measures every member of a population

Discrete Data

Continuous Data

Mode

Median

Data that can only take definite values

Data that can have any value

Value with the highest frequency, value that appears the most…

Middle value when numbers have been arranged in ascending order

Discrete Data

Data that can only take definite values

Continuous Data

Data that can have any value

Tables

quantitative data

categorical data

bar graph

a way to present data clearly

numerical data

Data that consists of names, labels, or other nonnumerical val…

A graph that uses horizontal or vertical bars to display categ…

Tables

a way to present data clearly

quantitative data

numerical data

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

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…

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

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

What does population mean?

What does sample mean?

State the three sampling techniques

What is simple random sampling and how…

All members of the set that is being studied or has data colle…

A smaller subset of the population that is used to draw conclu…

Simple random sampling, systemic sampling, opportunity sampling

Each member of the population has an equal probability of bein…

What does population mean?

All members of the set that is being studied or has data colle…

What does sample mean?

A smaller subset of the population that is used to draw conclu…

Statistics

Population

Sample

Descriptive Statistics

The science of collecting, organizing, summarizing, and analyz…

Entire group of individuals

A subset of the population that is being studied.

Describing data through numerical summaries, tables, and graphs

Statistics

The science of collecting, organizing, summarizing, and analyz…

Population

Entire group of individuals

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…

Chart from raw score to percentile

How do you find the variance?

How do you find the standard deviation(…

How do you find the z-score?

Raw score, mean, x-mean, (x-mean)2, variance, standard deviati…

Average of (x-mean)2

square root of the variance

x-mean... ---------... o

Chart from raw score to percentile

Raw score, mean, x-mean, (x-mean)2, variance, standard deviati…

How do you find the variance?

Average of (x-mean)2

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…