Suppo custom card. Not checking account se that 75% of a bank\'s customers have

Question

Suppo custom card. Not checking account se that 75% of a bank's customers have checking accounts and 30% of their ers have credit cards. 25% of customer have both a checking account and credit e, it is possible for someone to have a credit card with the bank without having a a. Wh at is the probability that a customer does not have a checking account? 0.25 1. 0.30 iii. 0.70 iv. 0.75 Given that a customer has a checking account, what is the probability that they have a credit card? b. i-0.25 . 0.33 iii. 0.50 iv. 0.83

Explanation / Answer

a) We have P( Checking Account) = 0.75

P( Does not have checking Account) = 1-0.75 = 0.25

Option A is Correct

b) P( Credit Card//Checking Account) = P( Credit Card and Checking Account)/P( Checking Account)

P( Credit Card//Checking Account) = 0.25/0.75 = 0.33

Option B is Correct

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