Question

I need an answer with all four parts of this question. If you can answer any of it, thank you.

Answer 1

c) median of the 8th grade = 30, median of the 7th grade= 18
difference 30-18=12
a)IQR 7th grade 22-14=8
IQR 8th grade 34-26=8
d)  I think it should be like this IQR*x=12
8*x=12,   x=12/8 =3/2=1.5