Answer:
Option B,18-23
Step-by-step explanation:
.As mode=the most occuring number in the
data .
Which is 18-23 as it is the highest which is -25 students.
x 6 =
D
x + x-1 + x-2 + x-3 =54.
x-1
A
I think I am not sure I just started to do this in school...