SOLUTION: u (100,190) standard deviation answers to 4 decimal places.) u (4,92) standard deviation answers to 4 decimal places.)

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Question 1196957: u (100,190) standard deviation answers to 4 decimal places.)
u (4,92) standard deviation answers to 4 decimal places.)
Answer by MathLover1(20849) About Me  (Show Source):
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u(100,190)
mean: mu=%28100%2B190%29%2F2=145
variance: s%5E2+=%28100-145%29%5E2%2B%28190-145%29%5E2=4050
standard deviation: sigma=sqrt%284050%29=63.6396



u(4,92)
mean: mu=%284%2B92%29%2F2=48
variance: s%5E2=%284-48%29%5E2%2B%2892-48%29%5E2=3872
standard deviation: sigma=sqrt%283872%29=62.2254