Answer:
A. the probability that if a customer indicates he or she is very likely to recommend his or her primary financial institution, the banking customer also has complete trust is 0.78
B. The probability that a banking customer is very likely to recommend his primary financial institution is 0.347
Step-by-step explanation:
A we will use relative probability instead of percentage so every percentage will be divided by 100;
The probability of a customer having complete trust and likely to recommend is: the probability of having complete trust multiplied for the probability of being likely to recommend:
P(A)=0.41*0.66=0.2706
And the probability of any customer recomending the institution is the sum of the probabilities of having complete, some or none trust multiplied by their respective probabilities of recommending:
P(B)=0.41*0.66+0.47*0.16+0.12*0.01=0.347
The probability that if the customer recommened he has complete trust is P(A)/P(B) to normalize the probability:
P(A)/P(B)=0.78