Displaying Data Statistics Test Review

Statistics is a branch of mathematics that develops experiments, observations or other statistical methods to collect _________

• words

• answers

• data

• people

Which branch of statistics deals with the collection, organization, and presentation of data?

• Descriptive statistics

• Inferential statistics

• Probability theory

• Mathematical statistics

Which restaurant has a higher median wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

In how many games did the team score more than 20 points?

• 8

• 7

• 10

• 9

How many students are represented by the histogram?  

• Cannot be determined

• 9

• 31

• 35

Find the mean, median, and mode:

3, 1, 7, 9, 11, 8, 3

• mean:6.57 median:7 mode:3

• mean:9 median:6 mode:3

• mean:6 median:7 mode:3

• mean:6 median:9 mode:3

Use the following box and whisker plot to identify what percent of scores are below 82?

A score of an 85 on the box-and-whisker plot shown refers to

• the maximum score

• the third quartile

• the median

• the mean

What is the branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data?

• Algebra

• Geometry

• Probability

• Statistics

What are characteristics that are defined by a number, such as age or weight?

• descriptive statistics

• inferential statistics

• categorical variables

• numerical variables