The scores on a test for a sample of 34 statistics students are summarized in the following table

80.

Step-by-step explanation:

To find the mean of an amount of numbers, you first add up all of the numbers, in this case, 90 + 80 + 70 = 240. Then, you simply divide the sum of all the numbers by the amount of numbers there are. In this case, there are three. (90, 80, and 70). So to find your answer, the equation would be:

(90 + 80 + 70) ÷ 3 = 80.

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

ghjmutmum

step-by-step explanation: