Several intelligence tests follow a normal distribution with a mean of 100 and a standard deviation of 15.
a. Determine the percentage of the population that would obtain a score between 95 and 110.
b. For a population of 2,500, how many are expected to have a score above 125?
a.
Thus, 37.81% of the population would obtain scores between 95 and 110
b.
For a population of 2,500,
Thus, 120 people out of 2500 will score above 125.
Comments
Leave a comment