Graphs
Measures of Center
Measures of Variation
Statistics
Level of Measure
100
This word means "count" or "tally" in statistics.
What is frequency.
100
Also known as the average
What is mean
100
Max-Min
What is range.
100

Organizes, summarizes and displays data

What are descriptive statistics

100

A number with a true zero.

What is ratio level data?

200

This simple graphical display is a list with two columns.

What is a frequency table.

200
Some refer to this measure as the "middle number."
What is median.
200

Measures the amount of differences among the data points

Spread

200

Uses data to make predictions about the larger population

What are inferential statistics

200

Rank-ordered groups like: never, sometimes, always

What is ordinal level data?

300

Uses vertical bars that don't touch showing the percentage of cases for each category of the variable.

What is a bar graph

300
No statistic has more occurrences than this value.
What is mode.
300

68% of individuals fall within...

One standard deviation of the mean

300

There is no relationship between the variables

What is the null hypothesis

300

Categories of data like race: Black/African American, Latino/a, Asian, White, Other

What is nominal?

400

Graph of single points rather than bars.

What is a frequency polygon or line graph

400
An outlier can have a huge effect on this measure.
What is mean.
400

How much a distribution varies from the mean

What is the standard deviation?

400

Chi-square, t-test, ANOVA, correlation

What are statistical tests

400

A number without a true zero, like IQ or SAT score.

What is interval level data?

500

Bars that touch each other representing quantitative increments from one bar to the next.

What is a historgram

500

Where the data tend to fall

What is central tendency

500
This measure describes the middle half of data.
What is interquartile range.
500

The mean, median and mode are in the middle of this graph

What is a normal distribution

500

When a ratio level variable is changed to be nominal level

What is transforming a variable