Nina goes to the supermarket 0, 1, or 2 times in a week. the probability that she goes 0 days is 0.2, the probability that she goes 1 day is 0.50, and the probability that she goes 2 days is 0.30. what is the expected value of the number of days per week on which nina goes to the supermarket? 0.8

The probability that Nins goes 0 days is 0.2, the probability that she goes 1 day is 0.50, and the probability that she goes 2 days is 0.30. You can write these data as a table:

where are numbers of days and are probabilities.

The expected value of the number of days per week on which Nina goes to the supermarket is

.

the expected value of the number of days per week on which Nina goes to the supermarket is 1.1.

answer:

125 yards

explanation:

75+50=125. that is my answer