Find the range, mean, median, and mode of the following data set.

21, 14, 2, 9, 12, 3, 1, 8, 20

a.

Range 17

Mean 10

Median 9

Mode 9

c.

Range 20

Mean 11

Median 9

Mode none

b.

Range 20

Mean 10

Median 12

Mode none

d.

Range 20

Mean 10

Median 9

Mode none

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