QUESTION 6:4 Because of the relatively high interest rates, most consumers attempts to pay off their credit card bills promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by bank's Visa card holders reveals that the amount is normally distributed with mean of #27 and a standards deviation of $7.4 U a. What proportion of the bank's Visa cardholders pay more than $30 in interest?- b. What proportion of the bank's Visa cardholders pay more than $40 in interest? c. What proportion of the bank's Visa cardholders pay less than $15 in interest? d. What interest payment is exceeded by only 20% of the bank's Visa cardholders? QUESTION 6:4 Because of the relatively high interest rates, most consumers attempts to pay off their credit card bills promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by bank's Visa card holders reveals that the amount is normally distributed with mean of #27 and a standards deviation of $7.4 U a. What proportion of the bank's Visa cardholders pay more than $30 in interest?- b. What proportion of the bank's Visa cardholders pay more than $40 in interest? c. What proportion of the bank's Visa cardholders pay less than $15 in interest? d. What interest payment is exceeded by only 20% of the bank's Visa cardholders