Male and female populations of humpback whales under 80 years old are represented by age in the table below. Complete parts (a) through (d). (a) Approximate the population mean and standard deviation of age for males. = 42.50 years (Round to two decimal places as needed.) Age Males Females = 20.20 years 0-9 9 6 10-19 13 8 20-29 18 13 30-39 15 18 40-49 25 21 50-59 23 21 (Round to two decimal places as needed.) (b) Approximate the population mean and standard deviation of age for females. = years (Round to two decimal places as needed.) 60-69 17 16 70-79 12 12