Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL.a) What percent of adult women do you expect to have cholesterol levels at least (Round to tenths)b) What percent of adult women do you expect to have cholesterol levels between 150 and 170 mg/dL (include the boundaries) ?(Round to tenths)(Round to tenths)d) What level would represent the 10thpercentile ?