### Home > CCG > Chapter Ch7 > Lesson 7.3.1 > Problem 7-121

7-121.

Find the spinner’s expected value if the value of region

is. Find the expected value of a single spin by finding the product of the probability and the value for each region. Find the sum for all the regions.

Find the spinner’s expected value if the value of region

is. Use the same equation from part (a), but put a

in place of the for the value of .What does the value of region

need to be so that the expected value of the spinner is? Use the same equation from part (a), but put a

in place of the for the value of .