Question 84940
You have to break these up to make a bell-curve.
<---- 70 ---- 85 ---- 100 ---- 115 ---- 130 ---->
Plug in the percentages:
<--(2.2%)-- 70 --(13.6%)-- 85 --(34%)-- 100 --(34%)-- 115 --(13.6%)-- 130 --(2.2%)-->
A. the percentage of IQ scores between 100 and 120. 
34% > x > 13.6%

B. the probability of selecting a person at random having an IQ between 100 and 120. 
34% > x > 13.6%
34/100 > x > 13.6/100 likewise
C. the percentage of IQ scores between 88 and 100. 
34%

D. the probability of selecting a person at random having an IQ between 88 and 100. 
34% or 34/100 likewise

E. the percentage of IQ scores that are 110 or above. 
50% > x > 15.8%


F. the probability of selecting a person at random having and IQ of 110 or above
~ likewise