Question

In a survey, 7 out of 10 women said they would recommend a book to a friend,
but only 4 out of 10 men would do so. If a person from the sample group does
not recommend the book to a friend, what is the probability that it is a man?

20 people total. 6 out of the 10 would not share that were men. Probability 6/20?

Answer 1

use Bayes' theorem

Answer 2

7w + 3w' = 10 women total
4m + 6m' = 10 men total
^^^^
given not like book, what the probability its a guy?

Answer 3

how many guys dont recommend it? =f
now many people in total dont recommend it? =s

P(man|given not recomend) = f/s

Answer 4

probability 6/9 correct?

Answer 5

yes