The sum of all X's is 3780. The sum of

Ahmed Stewart

Ahmed Stewart

Answered question

2022-01-29

The sum of all X's is 3780. The sum of all X2 is 80000. The sample N = 180. How can I calculate the variance?

Answer & Explanation

Fallbasisz8

Fallbasisz8

Beginner2022-01-30Added 9 answers

Explanation:
x=3780
x2=80000
n=180
x=xn=3780180=21
V(x)=x2x2180
=80000212180=79559180=442

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