Suppose that we have the data {x 1 , x 2 , ..., x n } such that x 1 =x 2 =...=x n =3. What is the mean of the data? What is the standard deviation? In the formula for the mean of the grouped data,...



  1. Suppose that we have the data {x1, x2, ..., xn} such that x1=x2=...=xn=3. What is the mean of the data? What is the standard deviation?

  2. In the formula for the mean of the grouped data, what do you get when you have all group frequencies equal to 1?

  3. Two data sets of the same size have standard deviations s1
    and s2. If s12, then how do these data sets compare?



Jun 02, 2022
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