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, on 80% of the days, we would expect the day's output to be between 13,580 kwh and how many kwh.
A)22,300
B)19,220
C)25,100
D)17,300
E)26,380

Question

Quizplus · Accepted Answer

To find the upper limit for 80% of the days, we use the z-score for 80% which is approximately 0.84. The calculation is: 16,400 + (0.84 * 2200) = 19,220 kwh.

Charanka Solar Park in India Reports That It Produces an Average