Comparing Data Sets

Question 1

The box plots show the data distributions for the number of customers who used a coupon each hour for two days of a store sale.

Revolt · Accepted Answer

2

Question 2

The table shows the growth, in centimeters, of plants in two different soils after two weeks. Which statement explains which soil tended to have a greater growth?

Revolt · Accepted Answer

Soil A had greater growth because its data have a greater mean.

Question 3

The table shows the daily time, in minutes, Maggie spent at swim practice and band practice over the last ten days. Which statement is true about the measures of center of the practice times?

Revolt · Accepted Answer

Maggie’s daily time at swim practice tends to be greater than her time at band practice.

Question 4

The box plots show the distributions of the numbers of words per line in an essay printed in two different fonts. Which measure of center would be best to compare the data sets?

Revolt · Accepted Answer

The median is the best measure because both distributions are left-skewed.

Question 5

best

Revolt · Accepted Answer

Both distributions are skewed left, so the interquartile range is the best measure to compare variability.

Question 6

The histogram represents the distributions of boiling temperatures, in degrees Celsius, of tap water and a mixture of salt water.

Revolt · Accepted Answer

The two distributions are each nearly symmetric.

Question 7

The histogram shows the distributions of prices for packs of adult socks and packs of kid socks at a store. Which measure of center is the best to use to compare the prices of kid socks and adult socks?

Revolt · Accepted Answer

median

Comparing Data Sets Answers

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