Chapter 5.3, Problem 109E

To determine

To find:the probability at least one of them is classified as underweight.

Answer to Problem 109E

  $P\left(\text{at least one of two underweight}\right)=0.245$

Explanation of Solution

Given:

  $\begin{array}{l}\mu =26.8\\ \sigma =7.4\end{array}$

Calculation:

The width of each bar has to be equal and height has to be equal to the frequency

  $P\left(\text{not }A\right)=1-P\left(A\right)$

  

It is noted that the distribution for the response level (1, 2, 3) for each category of highest degree completed is not the same (proportion of response level 3 is lower for bachelor degree than or less than high school degree).

This means that there is an association between level of education and response to the freedom to organize one’s work.