Question

If the sum of 20 observations is 100, the sum of squares of these observation is at least
A. 25
B. 100
C. 500
D. 2500​

Answer 1

Answer is C 500

Explaination

20 observation = 100

Then 1 observation = 100/20

=5

Then square of 5 = 25

25 into 20 = 500 (20 is the number of observations)

Answer 2

Answer:

Step-by-step explanation:

Ur Answer is 14.