Question

1. marine biologists collected a sample of 40 adult sea turtles from hammerhead bay and estimated the age, in whole years, of each turtle. the histogram below shows the frequency of sea turtles for each of the estimated age groups. what is the maximum possible number of sea turtles that could have had an estimated age of 45 years? estimated ages of sea turtles in hammerhead bay frequency 12 10 8 6 4 2 0 9.5 19.5 29.5 39.5 49.5 59.5 69.5 79.5 estimated age (years) a. 1 b. 5 c. 9 d. 10 e. 40

Explanation:

Step1: Identify the age - group containing 45 years

The age of 45 years lies in the age - group 39.5 - 49.5 years.

Step2: Determine the frequency of the relevant age - group

From the histogram, the frequency of the age - group 39.5 - 49.5 years is 10.

Step3: Consider the maximum case

To find the maximum number of sea - turtles with an estimated age of 45 years, assume all the turtles in the 39.5 - 49.5 age - group are 45 years old. So the maximum number of sea - turtles with an estimated age of 45 years is 10.

Answer:

D. 10