What is the mean of 2,7,5,4,3,3,5,5,6,5

the mean of this data is 4.5

*to find the mean all we have to do is add all the numbers and divide by how many are there*

2+7+5+4+3+3+5+5+6+5=45

(there are 10 numbers here so we divide 45 by 10)

45/10= 4.5

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

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