On a Test of Marital Intimacy,husbands' Scores Are Normally Distributed

Essay

On a test of marital intimacy,husbands' scores are normally distributed with a mean of 140 and a standard deviation of 25.
a.Using the normal curve approximation rules,approximately what percentages of husbands have scores above 190,below 165,and below 115?
b.Illustrate your answer with a sketch.
c.Explain your answers to a person who is familiar with mean,standard deviation,and Z scores,but not with normal curve percentages.