Question

The table below shows data from a survey about the amount of times students spend doing homework each week. The students were either in college or in high school:

Which of the choices below best describes how to measure the spread of this data?

A- Both spreads are best described with the IQR.

B- Both spreads are best described with the standard deviation.

C- The college spread is best described by the IQR. The high school spread is best described by the standard deviation.

D- The college spread is best described by the standard deviation. The high school spread is best described by the IQR.

Answer 1

in table data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ

College 50 5 7.5 15 7.5 11 13.8 6.4

High School16 0 9.5 14.5 5 13 10.7 5.3 Both spreads are best described with the standard deviation.

Explanation: