Question

Help needed right now please.

A)Fill in the blank with a number that would make the range of the data set 20.
3, 10, 8, 3, 10, 1, 10,
B)
Fill in the blank with a number that would make the mean of the data set 15.
3, 10, 8, 3, 10, 1, 10,
C)
Fill in the blank with a number that would make the standard deviation smaller.
3, 10, 8, 3, 10, 1, 10,

Answer 1

A) 21 (21 - 1 = 20)
B) 75 (8 x 15 = 120; 120 - 3 - 10 - 8 - 3 - 10 - 1 - 10 = 75)
C) 6 (any value close to the mean)