A scientist reviews her data to find the measures of central tendency using a calculator.
She finds the average mass of an adult brown bear is about 1.36E5 grams, and the average mass of a beetle fly is approximately 0.61E2 grams.
She also found the sum total of her data using a calculator. The total brown bear population in the world is approximately 2E5, and the total beetle fly population is approximately 7E10.
Rounded to the nearest whole number, the total mass of all living beetle flies is approximately
times more than the total mass of all living brown bears.
The total mass of all living beetle flies can be calculated by multiplying the average mass of a beetle fly (0.61E2 grams) by the total beetle fly population (7E10):
Total mass of beetle flies = 0.61E2 grams * 7E10 = 4.27E12 grams
The total mass of all living brown bears can be calculated by multiplying the average mass of a brown bear (1.36E5 grams) by the total brown bear population (2E5):
Total mass of brown bears = 1.36E5 grams * 2E5 = 2.72E10 grams
To find out how many times more the total mass of all living beetle flies is compared to the total mass of all living brown bears, we divide the total mass of beetle flies by the total mass of brown bears:
4.27E12 grams / 2.72E10 grams = 157.16
Therefore, rounded to the nearest whole number, the total mass of all living beetle flies is approximately 157 times more than the total mass of all living brown bears.