Answer:
option 4
The value is not unusual.
Step-by-step explanation:
If the probability of revenue between $747.89 and $818.68 million is low i.e. less than 5% then we can say that it would be unusual for a randomly selected company to have a revenue between $747.89 and 818.68 million.
We are given that revenue found to follow a bell curve. Also, we are given that mean=815.425 and standard deviation=22.148.
P(747.89<x<818.68)=?
P((747.89-815.425)/22.148<z<(818.68-815.425)/22.148)=P(-3.05<z<0.15)
P(747.89<x<818.68)=0.4989+.0596=0.5585
Thus, the probability for a randomly selected company to have a revenue between $747.89 and 818.68 million is not low and so the value is not unusual.