During an annual heating season, the average gas bill for customers in a New England community heating their homes with gas was $457 Assuming a normal distribution and a standard deviation of $80 a What proportion of homes heating with gas had a gas bill over $382 b What proportion of homes heating...

Let x the gas bill for customers in this community heating their homes with gas x is normally distr ...

During an annual heating season, the average gas bill for customers in a New England community heating

Question:

During an annual heating season, the average gas bill for customers in a New England community heating their homes with gas was $457. Assuming a normal and a standard deviation of $80:
a. What proportion of homes heating with gas had a gas bill over $382?
b. What proportion of homes heating with gas had a gas bill between $497 and $537?
c. What amount was exceeded by only 2.5% of the homes heating with gas?
d. What amount was exceeded by 95% of the homes heating with gas? Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...