N one region, the September energy consumption levels for single-family homes are found to be normally distrib

Question

n one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. For a randomly selected home, find the probability that the September energy consumption level is between 1100 kWh and 1221 kWh.

a) 0.2881

b) 0.1971

c) 0.3791

d) 0.0910

please show work

Answer 1

I question this findings due to the fact that they are based on a formula that is not bias. the average home is 1000 sq. ft. by having a water heater and washer and dryer, air condition one television, a stereo, some lights and exhaust fan... you are looking at the average consumption of electricity per house hold in America .not counting the bureaucrats and politicians and high dollar players ... 1020kwh compared to the others which varies in sq footage 5000kwh to 27000kwh

Answer 2

You're meant to do your homework yourself, not have some stranger on the internet do it for you.

Oh well, just go with answer (d).