- Question 5 Not Yet Answered If X Is A Random Variable With The Probability Density Function F X C X For 1 X 1 An 1 (7.88 KiB) Viewed 23 times
Question 6 Not yet answered The human body weight is normally distributed, with a mean of 61 kg and variance of 25 kg? What is the 90th percentile of the body weight so that 90% of people will have their weights below it? Note that from the 2-distribution table, we know. P(Z<= -1.645) = 5% P(Z<= -1.96) = 2.5% Marked out of 3.00 Flag question P(Z<= -1.28) = 10% O a None of the other answers is correct Ob 67.4kg Ос 66.4kg Od. 69.2kg 70.8kg
Question 7 Not yet There are two random variables X and Y, and their correlation coefficient PX,Y = 0.7. Now, we have two new random variables A = 2.5X+1 and B = 4Y+2. Please compute the correlation coefficient of A and B. PA.B answered Please round your answer to one decimal place. Marked out of 3.00 Flag question Answer: