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## Statistics and probability

### Course: Statistics and probability>Unit 6

Lesson 3: Sampling methods

# Simple random samples

## Problem

Mr. Thompson runs his own printing and bookbinding business. He suspects that the machine isn't putting enough glue into the book spines and decides to inspect his most recent order of $70$ textbooks to test his theory. He numbers them $01$-$70$ and, using the random digit table printed below, selects a simple random sample of $5$ books to check.
Which books are in the sample?
$85063\phantom{\rule{0.167em}{0ex}}\phantom{\rule{0.167em}{0ex}}55810\phantom{\rule{0.167em}{0ex}}\phantom{\rule{0.167em}{0ex}}10470\phantom{\rule{0.167em}{0ex}}\phantom{\rule{0.167em}{0ex}}08029\phantom{\rule{0.167em}{0ex}}\phantom{\rule{0.167em}{0ex}}30025$