MATH SOLVE

7 months ago

Q:
# The scores on a standardized test are normally distributed with a mean of 90 and standard deviation of 5. What test score is 1.4 standard deviations above the mean?

Accepted Solution

A:

Here mean = 85 and standard deviation = 5
X = mean + 1.4(standard deviation)
X = 90 + 1.4(5)
X = 97