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CryptoMath
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Homework Statement
Weight of the plums of a large lot is averaging 70 g and SD 0.85 g.
X= the average weight of plums in a pack of 14 plums.
Find the variance of the variable X.
Homework Equations
The Attempt at a Solution
n=14
Average_Total= 70*14=980
SD2 = Variance_Total= 0.852 *12 = 10.115
Variance/n = 10.115/14 =0.7225
Does that make sense so far? I am pretty much stuck here.