# Let x be a random variable that represents white blood cell

Last updated: 2/3/2024

Let x be a random variable that represents white blood cell count per cubic milliliter of whole blood Assume that x has a distribut that is approximately normal with mean 7 600 and estimated standard deviation 1 700 A test result of x 3 500 is an indication of leukopenia This indicates bone marrow depression that may be the result of a viral infection LUSE SALT a What is the probability that on a single test x is less than 3 500 Round your answer to four decimal places 0 0082 x b Suppose a doctor uses the average x for two tests taken about a week apart What can we say about the probability distribution of X The probability distribution of x is approximately normal with 7600 and 850 The probability distribution of x is not normal The probability distribution of x is approximately normal with 7600 and The probability distribution of x is approximately normal with 7600 and What is the probability of x 3 500 Round your answer to four decimal places 0 00794 X 1700 1202 0815 c Repeat part b for n 3 tests taken a week apart Round your answer to four decimal places