- #1
priscilla98
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Homework Statement
The scores of one class on the Unite 2 mathematics test are shown in the table below. Find the population standard deviation of these scores, to the nearest tenth.
Unit 2 Mathematics Test
Score - Number of people
96 - 1
92 - 2
84 - 5
80 - 3
76 - 6
72 - 3
68 - 2
Homework Equations
standard deviation formula
The Attempt at a Solution
I used this website to find the standard deviation for this problem. But my answer is higher than a 100 and i think i made some miscalculations.
http://www.gcseguide.co.uk/standard_deviation.htm