The variance of a sample was reported to be 144. the report indicated that = 7200. what is the sample size?

The size of sample is 50

Step-by-step explanation:

Since we have given that

Variance of a sample was reported = 144

Variance of population was reported = 7200

Let the sample size be 'n'.

As we know the formula for "Variance of a sample":

Hence, the size of sample is 50.

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)