need help with part 3

Electricity bills: According to a government energy agency, the mean monthly household electricity bill in the United States in 2011 was $110.56. Assume the amounts are normally distributed with standard deviation $25.00. Use the TI-84 Plus calculator to answer the following. (a) What proportion of bills are greater than $125? (b) What proportion of bills are between $83 and $143? (c) What is the probability that a randomly selected household had a monthly bill less than $113? Round the answers to at least four decimal places. Part 1 of 3 The proportion of bills that are greater than $125 is |0.0976 X 5 Part 2 of 3 The proportion of bills that are between $83 and $143 is 0.7008 EX 5 Part 3 of 3 The probability that a randomly selected household had a monthly bill less than $113 is X Submit A @2022 McGrew Hill LLC, All Rights Reserved. Terms of Use | Privacy Center