The marketing manager of a grocery store observed customers going to the baby’s

Question

The marketing manager of a grocery store observed customers going to the baby’s section. She found that 62% of all customers buy buby formula, 52% of all the customers buy diapers and 38% of all customers buy both baby formula and diapers. Use B to denote the event that a randomly selected customer buys baby formula and D to denote the event that a randomly selected customer buys diaper. Thus the information given above can be written as P(B)=0.62, P(D)=0.52 and P(BD)=0.38.

QUESTION 6 1 points Save Answer If it is known that a randomly selected customer will buy baby formula, what is the probability that this customer will also buy diaper? O 0.2692 0.3871 0.6129 0.7308 cannot be determined

Explanation / Answer

Given that a person buys baby formula, the probability he also buys diaper is given by P(D|B)=P(B and D)/P(B) =0.38/0.62=0.6129. Thus the correct option here is option C.

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