Male and female populations of

humpbackwhales

under 80 years old are represented by age in the table below. Complete parts (a) through (d)

Age Lower Limit Upper Limit Males Females 0-9 0 9 11 8 10-19 10 19 17 5 20-29 20 29 12 17 30-39 30 39 17 16 40-49 40 49 23 20 50-59 50 59 21 20 60-69 60 69 20 17 70-79 70 79 12 15

Approximate the population mean and standard deviation of age for males.

=enter your response here

years(Round to two decimal places as needed.)

Part 2

=enter your response here

years(Round to two decimal places as needed.)

Part 3(b) Approximate the population mean and standard deviation of age for females.

=enter your response here

years(Round to two decimal places as needed.)

Part 4

=enter your response here

years(Round to two decimal places as needed.)

Part 5(c) Which gender has the higher mean age?

Males

Neither

Females

have the higher mean age.

Part 6(d) Which gender has the higher dispersion in age?

Females

Neither

Males

have the greater dispersion