MATH SOLVE

2 months ago

Q:
# Adimas found the mean of her 11 math test scores for the first semester.x = ≈ 81Using 81 as the mean, find the variance of her grades rounded to the nearest hundredth.σ2 =Find the standard deviation of her grades rounded to the nearest hundredth.σ =

Accepted Solution

A:

Answer: O^2= 71.36 O=8.45