Q: The data set, {85, 70, 91, 73}, represents Connie's test scores for the first four tests of the semester. Connie scored an 75 on the fifth test. What impact does the 75 have on the mean test score?

Select from the drop-down menu to correctly complete the statement.

The 75 caused the mean test score to (A. Decrease B. Increase C. Stay The same)
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A. decrease

Step-by-step explanation:

The mean average number without the fifth test is 79.75 so her score went down. Hope this helped!

( ͡° ͜ʖ ͡° ) copy and   paste it

step-by-step explanation:

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