Answer
a)
0, 4/16
2, 2/16
3, 2/16
7, 2/16
9, 2/16
10, 2/16
12, 2/16
b) $12$
c) No
Work Step by Step
a)We know there are $4$ numbers, so there are $4^2=16$ ways to combine them. Combining the values with the same ranges, we obtain the following:
Median, probability:
0, 4/16
2, 2/16
3, 2/16
7, 2/16
9, 2/16
10, 2/16
12, 2/16
b) We can see that the population range of this set is $12$.
c) The population range is not unbiased, because it is not equal to the sample range.
