Question

The probability of a person being Starbucks fan is 0.6. Given that a person is a Starbucks fan, the probability of him/her being a Star Wars fan is 0.7. Also given that someone is not a Starbucks fan, probability of him/her being Star Wars fan is 0.75.

a) Find the probability of a person being a Star Wars fan.

b) FInd the probability of a person being a starbcks fan given he/she is a star wars fan.

Answer #1

Let us denote the events :

A : a randomly selected person is Starbucks fan

B : a randomly selected person is Star Wars fan

Given

Now

a) The probability of a person being a Star Wars fan

b) The probability of a person being a Starbucks fan given he/she is a star wars fan

how would you do this, could someone explain with steps
please
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