14. Find the average of the 1000 whole numbers

from 1 to 1000 inclusive.

(A) 499.5

(B) 500.0

(C) 500.5

(D) 501.0

500.5

Step-by-step explanation:

The average of a set of numbers is the sum of the numbers divided by the number of numbers.

The sum of all whole number form 1 to n is n (n + 1) / 2.

The sum of all whole numbers from 1 to 1000 is

1000 (1000 + 1) / 2 = 1000 (1001) / 2 = 500,500

The average is the sum of the numbers divided by the number of numbers.

average = 500,500/1000 = 500.5