Answer the questions using the table below: P(A) = ? P (A/B) = ? P (X) = ?

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Use the two-way table of data from another student survey to answer the following question.
Like Weight Lifting Yes No Total Like Aerobic Yes 71219 Exercise No 14721 Total 211940
What is the conditional relative frequency that a student likes to lift weights, given that the student does not like aerobics?

Find P(A) using the following table.

Complete the table.
$\begin{array}{|ccc|}\hline \text{Grade}& \text{Frequency}& \text{Relative frequency}\\ A& 5\\ B& 11\\ C& 16\\ D& 5\\ F& 1\\ \hline\end{array}$
(Round to two decimal places as needed.)

A survey was designed to study how business operations vary according to their size. Companies were classified as small, medium, or large.

Use the table below and answer the questions.
1) P (> 1 car | 2 to 4 kids) = ?
2) P (< 4 kids or ${\displaystyle \le }$ 2 cars) = ?

Describe in your own words the process you use to write marginal relative frequencies for data given in a two-way table.