The recommended minimum credit card payment for a sample of 100 credit card holders is summarized below: Minimum Payment (5) Frequency 15 to under 30 36 30 to under 45 30 45 to under 60 60 to under 75 75 to under 90 a. Estimate the mean minimum payment. Mean: l $40.50 l Round to 2 decimal places. b. Using that median class, estimate the median minimum payment. Median: l $0.00 | c. What is the modal class? Modal Class: I V