Question 15 (4 points) Low-Density Lipoprotein (or LDL) is considered the "bad" cholesterol because it forms plaques in arteries, raising the risk for heart attack and stroke. Suppose you are interested on predicting LDL (in mg/dL) using one's age (in years). Assume that LDL levels and age are normally distributed and that the correlation between the two variables is 0.534. What would the exact percentile in LDL levels be for a person whose age is at the 75th percentile? O [Source: Ldl cholesterol: Definition, risks, and how to lower it. (2020, March 09). Retrieved from https://www.webmd.com/heart-disease/ldl-cholesterol-the-bad-cholesterol] O A) 67th ( B) 36th O O C) 64th O D) 75th ( E) 53rdQuestion 12 (4 points) The mean arterial pressure (or MAP, average arterial pressure in one cardiac cycle) is a measure for perfusion status. You are interested to know if it is possible to predict an adult's MAP (Y) based on the body surface area (X). Suppose you randomly selected 50 adults, and measured their mean arterial blood pressure (in mmHg) & body surface area (in m2). The results are reflected below: )7: 1.6 sx=0.5 y=80.1 Sy = 16.9 r=0.8 [$0urce: Nail, R0 (2018, April 10)' Mean arterial pressure: Normal, low, high readings plus treatment. Retrieved from https://wwwhealth/ine.cam/health/meanarterial-pressure] What is the probability that the MAP of a person with 1.66 m2 body surface area exceeds 100 mmHg? 0 A) 0.025 O B) 0.5 O C) 0.975 O D) 0.0359 Q E) 0.9641 Question 10 (4 points) The mean arterial pressure (or MAP, average arterial pressure in one cardiac cycle) is a measure for perfusion status. You are interested to know if it is possible to predict an adult's MAP (Y) based on the body surface area (X). Suppose you randomly selected 50 adults, and measured their mean arterial blood pressure (in mmHg) & body surface area (in m2). The results are reflected below: f=1.6 sx=0.5 y=80.1 sy = 16.9 r=0.8 [$0urce: Na/I, R: (2018, April 10). Mean arterial pressure: Normal, low, high readings plus treatment. Retrieved from https://www.health/ine.cam/health/mean-arteriaIpressure] Using the figures above, calculate the slope and intercept of the regression equation. Q A) slope: 27.04, intercept: 123.36 0 B) slope: 0.02, intercept: 80.07 0 C) slope: 27.04, intercept: 36.84 0 D) slope: 6.76, intercept: 69.28 0 E) slope: 36.84, intercept: 27.04