Verify that the following function is a probability mass function, and determine the requested probabilities. f...
12 Verify that the following function is a probability mass function, and determine the requested probabilities. [Give exact answers in form of fraction.] f(x)-(5/6)(1/6)" x=0,1,2, , (a) P(X= 2) (b) P(X s 2)-.uI = i (c) P(X > 2)= (d) P(X21) = T Your answer is partially correct. Try again. Verify that the following function is a probability mass function, and determine the requested probabilities f (x)3x+3 45x 0, 1, 2,3,4 Is the function a probability mass function? Give exact...
Verify that the following function is a probability mass function, and determine the requested probabilities. f(x) = x = 0,1,2,3,4 Is the function a probability mass function? 6x+4 80 Give exact answers in form of fraction. (a) PIX =4) - (b) P(X s 1) - (c) P(2 s X < 4) = (d) PCX > -10) -
Verify that the following function is a probability mass function, and determine the requested probabilities. f(x) = (3x+4)/50, x = 0, 1, 2, 3, 4 Is the function a probability mass function? (yes/no) Give exact answers in form of fraction. (a) P(X = 4) = ? (b) P(X ≤ 1) = ? (c) P(2 ≤ X < 4) = ? (d) P(X > -10) = ?
Verify that the following function is a probability mass function, and determine the requested probabilities. 4x+2 50' Is the function a probability mass function? Give exact answers in form of fraction (a) P(X 4) (b) P(X s 1)- (c) P(2 s X <4) (d) P(X> -10) Statistical Tables an
NEXT FULL SCREEN PRINTER VERSION BACK RCES Question 20 The following function is probability mass function 1 2 1 0 2 f(x) 1/9 2/9 3/9 2/9 1/9 Determine the requested probabilities: [Give exact answers in form of fraction.] (a) P(X 2) 0 (b) P(X> 2)=0.9 (c) PC-1 Xs 1) =0.9 (d) P(Xs-1 or X = 2) = || Statistical Tables and Charts S Question 21 Verify that the following function is a probability mass function, and determine the requested probabilities....
Determine the mean and variance of the random variable with the following probability mass function. f (x) (343/57) (1/7)*, x-1,2,3 Round your answers to three decimal places (e.g. 98.765) Mean Variance
Determine the mean and variance of the random variable with the following probability mass function f (x) (27/13)(1/3)*, x 1,2,3 Round your answers to three decimal places (e.g. 98.765) Mean- Variance
Suppose X has a Poisson distribution with a mean of 7. Determine the following probabilities Round your answers to four decimal places (e.g. 98.7654) (a) P(X- o.0025 (b) P(X 2) = 0446 (c) P(X-4.1338 (d) P(x- 8.103:3
The probability density function of the time a customer arrives at a terminal (in minutes after 8:00 A.M.) is rx) = 0.5 e-x/2 for x > 0, Determine the probability that (a) The customer arrives by 11:00 A.M. (Round your answer to one decimal place (e.g. 98.7) (b) The customer arrives between 8:16 A.M. and 8:31 A.M. (Round your answer to four decimal places (e.g. 98.7654)) (c) Determine the time (in hours A.M. as decimal) at which the probability of...
The following function is probability mass function. f(x)-4x+2, X:0, 1, 2, 3, 4 Determine the mean, p, and variance, o2, of the random variable. Round your answers to two decimal places (e.g. 98.76) 2.80 9.2