Assume that a set of test scores is normally distributed with a mean of 120
and a standard deviation of 20
.
Use the 68-95-99.7 rule to find the following quantities.
a. The percentage of scores less than 120
is
%.
What is the percentage of scores less than 120?
Assume that a set of test scores is normally distributed with a mean of 120
and a standard deviation of 20
.
use the 68-95-99.7 rule to find the following quantities.
a. The percentage of scores less than 120
What percentage of scores is greater than 140?
6 years ago
Answer
NOT RATED
Purchase the answer to view it