Please help me and give me the explanation please: In Pitcher´s ERA, the earned run average, A is measured by the formula A = 9R/I, where R = runs allowed and I = number of innings pitched. Solve for the formula for I

I = 9R/A

Step-by-step explanation:

A = 9R/I

Multiply both sides by I.

AI = 9R

Divide both sides by A.

I = 9R/A

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3