The weights and LDL cholesterol levels of 96 patients at a family physician's office are recorded. Use the JMP applet to answer the following questions.

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The weights and LDL cholesterol levels of 96 patients at a family physician's office are recorded. Use the JMP applet to answer the following questions. JMP Applet imp . . .. ? Distributions LDL mg/dL Weight Ibs 25 20- Count Count 15- 50 100 150 200 100 120 140 160 180 200 220 240 Max/Min 100% maximum 223.216 0% minimum 72.136 k here to access the JMP applet in a new wind - (a) What is the approximate mean LDL cholesterol level? (Round your answer to two decimal places.) mg/dL - (b) What is the approximate standard deviation of the LDL cholesterol levels? (Round your answer to two decimal places.) mg/dL - (c) What is the approximate proportion of the LDL cholesterol levels that is within one standard deviation of the mean? (Use the empirical rule. Round your answer to the nearest whole number.) = (d) What is the approximate proportion of the LDL cholesterol levels that is more than two standard deviations above the mean? (Use the empirical rule. Round your answer to one decimal place.) %LDL mg/dL Weight Ibs Rows Share(%) mg Rows Share(%) LB 2 2 50-75 9 100-120 9 LO 75-100 19 20 120-140 21 22 100-125 24 25 140-160 27 28 125-150 21 22 160-180 19 20 150-175 18 19 180-200 11 11 175-200 3 3 200-220 7 200-223 2 2 220-240