Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 185 mg/dL and a standard deviation of 28. Complete parts a through e.a) Draw and label the Normal model.O A.68%96%99.7%143 157 171 185 199 213 227QQ✔b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL?%(Round to two decimal places as needed.)c) What percent of adults do you expect to have cholesterol levels between 130 and 180 mg/dL?(Round to two decimal places as needed.)d) Estimate the interquartile range of cholesterol levels.IQR = mg/dL(Round to the nearest integer as needed.)e) Above what value are the highest 15% of adults' cholesterol levels?mg/dL(Round to the nearest integer as needed.)O B.95%99.7%17 73 129 185 241 297 353QQMO C.95%99.7%101 129 157 185 213 241 269QQG

The mean of the distribution, mg/dLThe standard deviation of the distribution, “Since you have posted a question with multiple sub parts, we will provide the solution only to the first three sub parts as per our Q&A guidelines. Please repost the remaining sub parts separately.”(a)The normal model is given below:Hence, the correct answer is option C.(b)The percentage level of adults expected to have cholesterol levels over 190 mg/dL is computed as follows:Hence, the percentage level of adults expected to have cholesterol levels over 190 mg/dL is .Note:- The z-probability is computed using Excel. The Excel screenshot is given below:(c)The percentage of adults who have cholesterol levels between 130 and 180 mg/dL is computed as follows:Hence, the percentage of adults who have cholesterol levels between 130 and 180 mg/dL is .Note:- The z-probability is computed using Excel. The Excel screenshots are given below: (a) The correct normal model is option C.(b) The percentage level of adults expected to have cholesterol levels over 190 mg/dL is .(c) The percentage of adults who have cholesterol levels between 130 and 180 mg/dL is .