Author Question: The US Census Bureau collected data on family composition and found that samples from different ... (Read 67 times)

danielfitts88 · **on:** Jun 20, 2018

The US Census Bureau collected data on family composition and found that samples from different parts of the country gave very different results for the mean number of family members living in households. If all of the data were combined to one data set,

a. the standard deviation of number of family members would probably be very small.
b. the standard deviation of number of family members would probably be relatively high.
c. the interquartile range would be small.
d. the median would equal the mean.

Question 2

A data set of intelligence scores was collected from high school seniors. The IQ scores ranged from 82 to 113. Which of the following is probably NOT a reasonable estimate of the standard deviation?

a. 6.2
b. 4.7
c. 35.4
d. All of the above are reasonable estimates.