Data Unit Exam

Standard deviation represents the ........

• average of the data

• the number that appears the most

• the distance between the high and low

• the spread of the data set

A line plot can best be used to find the......

• mean

• medain

• mode

• standard deviation

What is the mode of the following data set?

• 2

• 1

• 3

• 0

• No mode

What is the median of the following data set?

• 1.5

• 2

• 2.5

• 2.25

• None of the above

In a box-and-whisker plot, the "box" represents _____ of the data.

• 25%

• 50%

• 75%

• 100%

• the outlier

Box-and-whisker plots are best for showing the reader the ______ of the data.

• mean

• median

• mode

• standard deviation

In the following box-and-whisker plot, 75% of the data is above ______.

• 16

• 18

• 22

• 26

• 28

Which of the following is false about the box-and-whisker plot?

• The median for New York was higher than the median for Seattle.

• The range for New York was 47.

• The lowest score for San Antonio was higher than the median for Seattle.

• New York has the smallest Inter-quartile.

What is the median for "Class B"?

• 77

• 84

• 76

• 95

• None of the above

How many total scores are represented in the data?

• 250

• 200

• 225

• 300

• 100