Measures of Variability Answers

Free Preview

The range represents the difference between the [___] and [___] temperatures.

minimum

maximum

mean

Free Preview

The range represents the difference between the [___] and [___] temperatures.

minimum

maximum

median

stay the same ✔ increasedecrease

stay the same

✔ increase

decrease

158111

[___]

Answer:

158118

What is the sample mean of the data set? Round to the nearest hundredth.

Answers:

Selection 1:variability

Selection 2:stay the same

158150

[___]

Answer:

5.10

158151

[___]

Answer:

82.5

158152

✔ 3.6638.11 39.00

Answers:

Selection 1:3.66

Selection 2:mean

Selection 3:increase

158153

Question text not available

Answer:

158154

range average ✔ variability

Answers:

Selection 1:variability

Selection 2:stay the same

158155

Two histograms showing the number of hours students in the jazz band practiced in a week are shown. The sample mean of Group 1’s data is 2.57. The sample mean of Group 2’s data is 3.337.Use this graphic to see the histograms.Which statement about the two histograms is true?

Graph 1 has a larger sample standard deviation than Graph 2.

Graph 2 has a larger sample standard deviation than Graph 1.

Both graphs have the same sample standard deviation.

The relationship of the sample standard deviations cannot be determined.

158156

Which statement is true?

If the missing data value was 55, the range of the data would change significantly.

If the missing data value was 55, the interquartile range of the data would change significantly.

If the missing data value was 22, the range of the data would change significantly.

If the missing data value was 22, the interquartile range of the data would change significantly.

158157

Which measure of variability is not resistant to extreme values?