Statistical Measures and Summarize Data

The data below shows the number of hours boys and girls spent studying for a test.
Boys: {2, 1, 3, 1, 2, 2}
Girls: {4, 1, 3, 2, 2, 4}
What is the difference in the interquartile range between the girls and boys?

• 1

• 2

• 3

• 5

What is the range?

• average

• biggest-smallest

• the middle #

• # happening the most

Quartiles are values that divide a data set into four equal parts.

• True

• False

Most of the people in this data exercise ​​ (a)   hours per week.

• more than 5

• between 3 and 6

• either fewer than 2 or more than 7

• fewer than 4

Most data points are clustered, or grouped, between ​ (a)   .

• 6 and 8

• 0 and 9

• 1 and 5

• 3 and 9

• 5 and 9

Which statement about this data is true?

• The data is symmetrical.

• The data is not symmetrical.

• The data is clustered between 0 and 6.

• The mean and MAD would be most appropriate for this data.

Find the median for this data. ​ (a)   ​ ​

• 13

• 11

• 12

• 14

• 15

• 7

• 19

• 25

• 9

• The middle half of the data is located between 7 and 19 students

• The IQR is 6

• The maximum value is 21

• The IQR is 12

What data value is the upper quartile (Q3)?

• 64

• 62

• 66

• 58

What value is the lower quartile?

• 66

• 58

• 60

• 64