A market research study is being conducted to determine if a product modification will be well ...

A market research study is being conducted to determine if a product modification will be well received by the public. A total of 1,000 consumers are questioned regarding this product.
The table below provides information regarding this sample.

   Positive
Reaction   Neutral
Reaction   Negative
Reaction
Male   240   60   100
Female   260   220   120

(a) What is the probability that a randomly selected male would find this change unfavorable (negative)?
(b) What is the probability that a randomly selected person would be a female who had a positive reaction?
(c) If it is known that a person had a negative reaction to the study, what is the probability that the person is male?