WeBWorK Standalone Renderer

Subscribers to a local newspaper were asked whether they regularly, occasionally, or never read the business section, and also whether they had traded in the stock market over the last year. The table below shows proportions of subscribers in six joint classifications.

$\begin{array}{cc} & \mbox{Read Business Section} \\ \mbox{Trade Stocks} & \begin{array}{c|ccc} & \text{Regularly} & \text{Occasionally} & \text{Never} \\ \hline \text{Yes} & & & \\ \text{No} & & & \\ \end{array} \end{array}$

Answer the following questions, rounding your answers to two decimal places where appropriate.

(a) What is the probability that a randomly chosen subscriber never reads the business section?

(b) What is the probability that a randomly chosen subscriber has traded stocks over the last year?

(c) What is the probability that a subscriber who never reads the business section has traded stocks over the last year?

(d) What is the probability that a subscriber who traded stocks over the last year never reads the business section?

(e) What is the probability that a subscriber who does not regularly read the business section traded stocks over the last year?

You can earn partial credit on this problem.