Homework Clinic

Mathematics Clinic => Other Maths => Topic started by: MirandaLo on May 5, 2020

Title: Suppose that the data set {x1,x2, x3, ...,xN} has average A and standard deviation s. If A' and s' ...
Post by: MirandaLo on May 5, 2020

Question 1

Which of the following [A), B), C), or D)] is not a measure of spread?
◦ the median
◦ the range
◦ the standard deviation
◦ the interquartile range
◦ all of these are measures of spread.

Question 2

Suppose that the data set {x_1,x₂, x_3, ...,x_N} has average A and standard deviation s. If A' and s' are the average and standard deviation of the data set respectively, then
◦ A' = A + c and s' = s.
◦ A' = A + c and s' = s + c.
◦ A' = A and s' = s.
◦ A' = A and s' = s + c.
◦ none of these

Title: Suppose that the data set {x1,x2, x3, ...,xN} has average A and standard deviation s. If A' and s' ...
Post by: ms_sulzle on May 5, 2020

Answer 1

the median

Answer 2

A' = A + c and s' = s.