Given the sample data.
x: 21 17 13 30 25
(a) Find the range.
(b) Verify that Σx = 106...
Mathematics, 11.10.2020 03:01 dondre54
Given the sample data.
x: 21 17 13 30 25
(a) Find the range.
(b) Verify that Σx = 106 and Σx2 = 2,424.
Σx = 106
Σx2 = 2424
(c) Use the results of part (b) and appropriate computation formulas to compute the sample variance s2 and sample standard deviation s. (Round your answers to two decimal places.)
s2=
s=
(d) Use the defining formulas to compute the sample variance s2 and sample standard deviation s. (Round your answers to two decimal places.)
s2=
s=
(e) Suppose the given data comprise the entire population of all x values.
Compute the population variance σ2 and population standard deviation σ. (Round your answers to two decimal places.)
σ2=
σ =
Answers: 2
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