Question

This Question: 1 pt 21 of 30 (3 complete) This Test: 30 pts possible o For a certain population, serum cholesterol levels (in mg/100 ml) are normally distributed with a mean of 161 and a standard deviation of Frank a member of the population and has a serum cholesterolvl of 100 48 Which of the following is a correct statement? O A Frank's serum cholesterol level is 147 standard deviation below the mean OB. Frank's serum cholesterol level is 1.52 standard deviations below the mean OC. Frank's serum cholesterol level is 13 standard deviations below the mean OD. Frank's serum cholesterol level is 163 standard deviation below the mean O L. None of the above Cick to see your 4:29 PM Type here to search O 6 5 4 9 8 7 P. R T WE U Y

Answer 1

Ang x denote cholesterol levels. Then xu N(M = 161, 8= 34). Frank's cholesterol level is 100.489 X-X1 100.48-161 Then corresponding 2-score is 2-score is n = 34 Z-1.78 109 tordida That means Frank's serum cholesterol level is 1.78 standard deviation below the mean Hence option (E) is correct.