Of all the people applying for a certain job, 60% are qualified and 40% are not. the personnel manager claims that she approves qualified people 70% of the time; she approves unqualified people 30% of the time. find the probability that a person is qualifiedqualified if he or she was approvedapproved by the manager.

0.778

Step-by-step explanation:

Given

60 % are qualified for Job and 40  % are not

Out of qualified manager approves 70 %

out of not qualified manager approves 30 %

Total no of approved people

Probability of qualified and Approved by manager

P(person is qualified if he or she was approved by the manager)

its 4 because 2 times 2 is 4, if you double the number two you get four

a. is correct