![Solulion: Given Par Cxzo) lo- 5 2-u 2-tabie] P(2 20 5) l-0.69/5 0.3085 P(a 20) 0 3085 P(x2) b) 2-5 -3 2 :-0.3 2: -o 3 1- 0.38](http://img.homeworklib.com/questions/8b7e52a0-f803-11eb-a7d5-dfd91296aae6.png?x-oss-process=image/resize,w_560)

Suppose that X is a random variable that has a normal distribution with mean u= 5...
2. If X and Y are independent random variables, X has a normal distribution with mean 2 variance 4, and Y has a chi-square distribution with 9 degrees of freedom, then find u such that P(X > 2+11,7)=0.01.
10) The X random variable has a normal distribution. P(X > 15) = 0.0082 and P(X<5) = 0.6554 find the mean and variance of this distribution
6. Let X be a normal random variable with mean u = 10. What is the standard deviation o if it is known that p (IX – 101 <>) =
A random variable, x, has a normal distribution with u = 11.6 and 6 = 2.50. Determine a value, Xo, so that a. P(x>xo) = 0.05. b. P(xsxo) = 0.975. c. P(H-Xo xxx H +0) = 0.95. a. Xo = (Round to one decimal place as needed.) b. Xo (Round to one decimal place as needed.) C. XO (Round to one decimal place as needed.)
7. Suppose the random variable U has uniform distribution on [0,1]. Then a second random variable T is chosen to have uniform distribution on [O, U] Calculate P(T > 1/2)
4.) a.) Suppose that X is a normal random variable with mean 4. If P[X > 9} = 0.1 approximately what is Var(X)? (15 points) b.) Measure the number of kilometers traveled by a given car before its transmission ceases to function. Suppose that this distribution is governed by the exponential distribution with mean 800,000. What is the probability that a car's transmission will fail during its first 40,000 kilometers of operation? (10 points)
Problem 1 (16 points). Suppose that Y is normally distributed random variable with u-10 and σ-2 and X is another normally distributed random variable with μ-: 5 and σ-5. Y and X are independent. Calculate the following probabilities according to a normal distribution table (e.g., a normal table found from the Internet) (1) (4 points) Pr(Y> 12) (2) (4 points) Pr(2 < X <4) (3) (4 points) Pr(Y> 12 and 2< X <4) and Pr(Y> 12 or 2< X <4)...
Given a normal distribution with u = 100 and o = 10, c. What is the probability that X < 75 or X>110? The probability that X < 75 or X>110 is .8475.
The cumulative distribution function of the random variable X is given by F(x) = 1-e-r' (z > 0). Evaluate a) P(X > 2) b) P(l < X < 3 c) P(-1 〈 X <-3). d) P(-1< X <3)
number? 10 3. Let X be a continuous random variable with a standard normal distribution. a. Verify that P(-2 < X < 2) > 0.75. b. Compute E(지)· 110]