If a graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1800 and the standard deviation is $80.

Distribution of Prices

a) What is the approximate percentage of buyers who paid between $1720 and $1880? _____%

b) What is the approximate percentage of buyers who paid between $1800 and $2040? _____%

c) What is the approximate percentage of buyers who paid between $1720 and $1800? _____%

d) What is the approximate percentage of buyers who paid more than $1960? _____%

e) What is the approximate percentage of buyers who paid less than $1560? _____%

f) What is the approximate percentage of buyers who paid between $1800 and $1960? _____