Given:
μ = 7.5, the population mean
σ = 1.5, the population standard deviation
According to the 68 - 95 - 99.7 rule, 68% of the population data lies within one standard deviation of the population mean.
Therefore the range of sizes that fit 68% of women is
(7.5-1.5, 7.5+1.5) = (6.0, 9.0)
Answer: 6.0 to 9.0
If the width of the reactangle is x=13, the area of the rectangle is:
A(13)=2*(13)^2-5*(13)
A(13)=2*(169)-65
A(13)=338-65
A(13)=273
The area of the rectangle is 273 square units
Y/4-7=3
y/4=7+3
y/4=10 /4
y=40
