Adimas found the mean of her 11 math test scores for the first semester.
(76 + 87 + 65 + 88 + 67 + 84 + 77 + 82 + 91 + 85 + 90)
892
11
11
81
Using 81 as the mean, find the variance of her grades rounded to the nearest hundredth.
02=
Find the standard deviation of her grades rounded to the nearest hundredth.
O=
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