Question

Which change could not affect the mode?
21, 19, 38, 24, 20, 3, 21, 23

a) eliminating the outliers
b) adding the data point 23 to the set
c) decreasing each number by 1
d) increasing each number by 2

Answer 1

first, can you identify the mode here?

Answer 2

21

Answer 3

right. so which choice do you think will retain 21 as the mode?

Answer 4

a?

Answer 5

yes - eliminate the outilers
removing 3 and 38
will not affect the mode

Answer 6

ok thank you (:

Answer 7

yw