Find , , if a random variable is given by its density function, such that, if , if , if 1. Let be given by its distribution function F(x), such thatF(x) = 0 if x 0≤F(x) = if 0<x
Find , , if a random variable is given by its density function, such that, if , if , if 1. Let be given by its distribution function F(x), such thatF(x) = 0 if x 0≤F(x) = if 0<x 2≤F(x) =1 if x>2a)Graph the distribution function b)Graph the density functionc)Find ,, 2.A random variable is distributed normally with E(X) = 8 and (X) =3 . Find σP(9 X<11). ≤3.The distribution of the width of a standard piece of computer paper is normal with an expectation of 8.5 inches and the standard deviation of 0.2 inch.a)Find the probability that the width of any given piece of computer paper is between 8.40 and 8.55.b)Find the probability that the width of any given piece of computer paper is less than 8.35.c)Find the probability that the width of any given piece of computer paper is greater than 8.6.4.The density function of a random variable is given by Find its (a) math expectation, (b) variance and (c) distribution function. 5.Find the density function of a normally distributed random variable, if E(X) = 7.8 and (X) = 4.1σ6.It’s known that a random variable is distributed normally with E(X) = 3 and it’s also known that p(0 X 1)+p(5 X 6) = 0.6. Find p(p(5 X 6).≤ ≤≤ ≤≤ ≤7.Describe a real-life situation to which the normal distribution could beapplied. Explain why. How does a normal distribution differ from one, which isnot? Which aspects of your situation might be altered?
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