Question 1162546: The mean starting salary for college graduates in the spring of 2019 was QR 36,280. Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of QR 3,300. What percent of the graduates have starting salaries:
a. More than QR 36,280?
b. Between QR 40,000 and QR 45,000?
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website!
More than the mean is 50%
(x-mean)/sd or between (40000-36280)/3300 and (45000-36280)/3300
this is z between 1.13 and 2.64
0.1251 is probability or 12.51%
calculator makes it a lot easier 2nd VARS 2 normalcdf ENTER (40000,45000,36280,3300) ENTER
get 0.1257 (no rounding) or 12.57%
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