Could you be more specific about what you need to know here? Where are the instructions for this problem? Try to explain what you do understand and what you don't.
X=.6
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Theirs a total of 60 customers divide it by 2 then times it by 5, you would get 150apples
20
Because I used this website called http://www.alcula.com/calculators/statistics/variance/
Hope this helped :)
