Question

Grace surveys moviegoers as they exit the theater and asks them to give the movie that they just saw a “thumbs-down” rating. She records the answer and the person’s gender.

Survey

Thumbs-Up
Male - 28
Female - 40

Thumbs-Down
Male - 22
Female - 18

What is the probability that one of Grace’s survey respondents is male?
What is the probability that one of Grace’s survey respondents has indicated a thumbs-down?
What is the probability that one of Grace’s survey respondents has either indicated a thumbs-up or is male?
What is the probability that one of Grace’s survey respondents has either indicated a thumbs-down or is female?
What is the probability that one of Grace’s survey respondents has indicated a thumbs-up?
What is the probability that one of the thumbs-up respondents is female?

Answer 1

Answer:

1) 25/54 = 46%

2) 10/27 = 37%

3) 17/27 = 63%

4) 20/27 = 74%

5) 17/27 = 63%

6) 10/17 = 59%

Step-by-step explanation:

1) (50 male)/108 total) = 25/54

2) (40 thumbs down)/(108) = 10/27

3) (68 thumbs down or male) / (108) = 17/27

4) (80 thumbs down or female)/(108) = 20/27

5) (68 thumbs up)/(108) = 17/27

6) (40 thumb up female)/(68) = 10/17