Question

In a survey, 200 people were polled about whether they preferred spending their free time playing sports, watching a movie, or reading a book. The relative frequency table below displays the results.
Sports Movie Reading
Male 0.25 0.30 0.10
Female 0.15 0.05 0.15

Part A: How many males surveyed preferred playing sports? Show your work and explain your answer.

Part B: How many people surveyed preferred to read a book? Show your work and explain your answer.

Part C: How many females were surveyed? Show your work and explain your answer.

Answer 1

A) 25% of males preferred playing sports.

Explanation) .25 is the same is 25%.

B) 25% of the people surveyed preferred reading a book.

Explanation) You have to add up how many males and females rather
                      to read a book.  It's .10 + .15 =  25%.

C) 70 females were surveyed out of 200 people. 

Explanation)  Add up .15 + .5 + .15 to get .35.  Put .35 multiplied by 200 to                            get 70.