Find the standard deviation of the random variable X. 23 46 49 2 P(X-x) 0.3 0.2...
Find the standard deviation of the random variable X. (Round the final answer to the nearest tenth as needed. Round all intermediate values to the nearest thousandth as needed.) X 46 15 38 44 P(X=x) 0.4 0.3 0.2 0.1
Find the standard deviation of the random variable X. x 20 47 26 27 P(Xequals=x) 0.4 0.2 0.2 0.2 σ = (Round the final answer to the nearest tenth as needed. Round all intermediate values to the nearest thousandth as needed.)
2) Consider a random variable with the following probability distribution: P(X = 0) = 0.1, P(X=1) =0.2, P(X=2) = 0.3, P(X=3) = 0.3, and P(X=4)= 0.1. A. Generate 400 values of this random variable with the given probability distribution using simulation. B. Compare the distribution of simulated values to the given probability distribution. Is the simulated distribution indicative of the given probability distribution? Explain why or why not. C. Compute the mean and standard deviation of the distribution of simulated...
2) Consider a random variable with the following probability distribution: P(X-0)-0., Px-1)-0.2, PX-2)-0.3, PX-3) -0.3, and PX-4)-0.1 A. Generate 400 values of this random variable with the given probability distribution using simulation. B. Compare the distribution of simulated values to the given probability distribution. Is the simulated distribution indicative of the given probability distribution? Explain why or why not. C. Compute the mean and standard deviation of the distribution of simulated values. How do these summary measures compare to the...
Find the mean, variance and standard deviation for the random variable X: Random Variable X -2 1 3 P(X = x) 0.1 0.3 .6 Show the calculations that you need for each part. You will get no credit for using your calculator or Excel and only giving the answer. You should write out: mean = ........ (show how the mean is calculated) Vairance = .............. Standard Deviation = ................
X 0 a P(x) 0.3 0.25 0.25 0.2 3 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places License
OX 1 P(x) 0.3 0.2 0.15 0.35 2 3 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places
7. Let X be a random variable with the following distribution: -2 3 f(x) 0.3 0.2 a. Find the variance of X. b. Find the standard deviation of X. 5 0.5
Random variable X has a distribution: P(x=0)=0.2 ; P(x=1)=0.3 ; P(x=2)=0.1 & P(x=3)=0.3 ; P(x=4)=0.1. Find: a) E(x) and Var(x) b) Find Fx(Xo) c) Find quantile of order 1/4 and median d) Find P(2<=x<=4)
1. Two independent random variables X and y are given with their distribution laws 4 P 07 0.1 0.2 P 0.2 0.3 0.5 Find 1) the variance of random variable Y 2) the distribution law of random variable Z-0.5Y+x END TEST IN PROBABL ITY THEORY AND STAISTICS Variant 1 1. Two independent random vanables X and Y are given with their distribution laws: 2 0.7 0.1 P 0.2 0.3 0.5 0.2 Find 1) the variance of random varñable Y 2)...