Chapter 11, Problem 46E

Solution

To find: If the data set “The first 50 names in the telephone directory” is a random sample.

The data set, “The first 50 names in the telephone directory” is not a random sample.

Given information:Data set “The first 50 names in the telephone directory”

Explanation:

In a random sample, each group of the same size is equally likely to be chosen.

Here, the data set is “The first 50 names in the telephone directory”. In a telephone directory, the names are ordered alphabetically, which means only whose names begin with the first few letters of the alphabet will be sampled.

Therefore, the data set, “The first 50 names in the telephone directory” is not a random sample.