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 average mass of an adult brown bear is 136,000 grams and the average mass of a beetle fly is 61 grams.

The total mass of all adult brown bears in the world is 27,200,000,000 grams and the total mass of all beetle flies is 4,270,000,000 grams.