Chapter 7.1, Problem 70E

To determine

To Estimate:the difference in survey number of adults that read only Sunday newspaper and daily newspaper

Answer to Problem 70E

The difference in survey number of adults that read only Sunday newspaper and daily newspaper is 72

Explanation of Solution

Given information:

32% adult of 300 read daily newspaper and 56% read only Sunday newspaper.

Calculation:

Number of adult read daily newspaper (in number) $\begin{array}{l}=32\%\text{ of }300\\ \frac{32}{100}\cdot 300=96\left[\text{write percent as a whole number }\right]\end{array}$

Number of adult read only Sunday newspaper (in number) $\begin{array}{l}\text{=56\% of }300\\ \frac{56}{100}\cdot 300=168\left[\text{write percent as a whole number }\right]\end{array}$

Therefore, the difference in survey number of adults that read only Sunday newspaper and daily newspaper is $168-96=72$ adults