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. (Round the final answer to the...
Find the standard deviation of the random variable X. 23 46 49 2 P(X-x) 0.3 0.2 0.2 0.3 Round the final answer to the nearest tenth as needed. Round all intermediate values to the nearest thousandth as needed.)
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.)
The random variable X has the probability distribution table shown below. Calculate the standard deviation of X. Show all work as to how you performed your calculations as if you did not have a calculator. (Rounded to two decimal place [6 points) [Hint: First, find E(X)] * 0136 P(X = x) 0.1 0.2 0.3 0.4
Find the standard deviation of the following data. Round your answer to one decimal place. x 6 5-4321 P(X=x) | 0.3 | 0.1 | 0.2 | 0.1 | 0.1 | 0.2
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 = ................
Can you help me with A & B a) To find the standard deviation b) find the standard deviation Find the standard deviations of the random variables. a) X P(X = x) X P(X = x) 10 | 0.2 1 | 0.4 20 0.5 3 0.2 30 0.3 5 0.1 b) 7 0.3
what are the correct values for 0,1,2,3? Find the probability distribution for the given random variable. (Round all probabilities to four decimal places.) From a bin that contains 27 defective joysticks and 31 good ones, 3 are chosen at random; X = the number of defective joysticks chosen. х 0 1 2 3 P(X = x) 0.0149 x 0.5552 x 0.6406 x 0.2293 x Draw a histogram. P(X)=x P(X)=x P(X)=x 0.4 0.4 0.4 0.3! 0.3 0.3 0.2. 0.2 0.2 0.1...
Find the standard deviation of the following data. x123456P(X=x)0.10.10.10.20.30.2
Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=44. Find the indicated probability. P(x<79 ) P(xl<79 )=______ (Round to four decimal places as needed.)
If x is a binomial random variable, use the binomial probability table to find the probabilities below. a.. P(x=2) for n=10, p=0.4 b.. P(x≤6) for n=15, p=0.3 c.. P(x>1) for n=5, p=0.1 d.. P(x<17) for n=25, p=0.9 e.. P(x≥6) for n=20, p=0.6 f.f. P(x=2) for n=20, p=0.2 a. P(x=2)=_______________-(Round to three decimal places as needed.)