# Use the two-way table of data from another student survey to answer the following question. Like Aerobic Excercise Like Weight Lifting Yes No Total Ye

Use the two-way table of data from another student survey to answer the following question.
Like Aerobic Excercise
Like Weight Lifting Yes No Total
Yes 7 14 21
No 12 7 19
Total 19 21 40
Find the conditional relative frequency that a student likes to lift weights, given that the student likes aerobics.

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stuth1
There are 21 students who like weight lifting and there are 40 student in total so the marginal relative frequency is $$\displaystyle\frac{{21}}{{40}}={52.5}\%$$