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Consider the following sample of values 22.5 3.9 18.6 23.6 9.7 50.2 42.1 A.find X^~ the...

Consider the following sample of values

22.5 3.9 18.6 23.6 9.7 50.2 42.1
A.find X^~ the sample mean , rounded two decimal places
B)find value od S^2 the sample variance , rounded two decimals places
D)find the value of s, the sample standerd deviation to two decimals places
math   Statistics-And-Probability   
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