Charanka Solar Park in India Reports That It Produces an Average

Multiple Choice

Charanka Solar Park in India reports that it produces an average of 16,400 kilowatt hours (kwh) of electricity per day, with a standard deviation of 2200 kwh.If this electrical output has a normal distribution, for what proportion of days would we expect the day's output to be between 15000 and 18000 kwh?

A) .4520
B) .6535
C) .4421
D) .5062
E) .3879