Compute the mean, variance, and standard deviation of the probability mass function. (Non-anonymous questionO) (8 Points) P(x) 0.15 1 2 0.25 3 0.30 4 0.15 0.10 6. 0.05
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- Pls solve for 4, 5 and 6.The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor. x f(x) 1 0.104 2 3 0.312 4 0.240 5 0.098 6 0.017 8 The variance of the days to complete the project is ________. a 1.665 b 1.542 c 1.428 d 1.322A random variable X has the probability function as given in the table below. It is easy to verify that the expected value is 12. Find the variance of X X P(X) 6 .25 12 .50 18 .25
- x P(x) 0 0.12 1 0.08 2 0.08 3 0.08 4 0.14 5 0.1 6 0.14 7 0.26 Find the variance of this probability distribution.Give your answer to at least 2 decimal placesX P(X) 0 0.2 1 0.2 2 0.11 3 0.43 Complete the distribution table and find Variance of X. 4 ?variable with the following probability distribution. Value x of X P=Xx -20 0.10 -10 0.15 0 0.45 10 0.25 20 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation EX of X . ? =EX (b) Find the variance Var X of X .? =VarX
- The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor. x f(x) 1 0.104 2 3 0.312 4 0.240 5 0.098 6 0.017 13 If you doubled each number of days to completion in the Days (x) column, the variance of days to completion will be _________. a 5.710 b 4.758 c 3.965 d 2.855One number in the following series does not fit in with the pattern set by the others. What should that number be? 1/16, 1/6, 1/4, 1/2, 1, 2 . ASK is the opposite of entreat crave demand appeal deny When wire is selling at $.0125 a foot, how many feet can you buy for $1.00? In printing an article of 21,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,200 words. Using the smaller type, a page contains 1,500 words. The article is allotted 16 full pages in a magazine. How many pages must be in the larger type? Two of the following proverbs have similar meanings. Which ones are they? Mothers' darlings make but milksop heroes. Still water runs deep. Mother knows best Wide will wear but narrow will tear. As a twig in bent. so is the tree inclined For $4.50, a grocer buys a case of fruit which contains 14 dozen. She knows that four dozen will spoil before she sells them. At what price per dozen must she sell the…Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 1 2 4 Probability 0.264 0.289 0.238 0.156 0.037 0.016 ... (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is 1.5. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.)
- The probability distribution of a random variable X is shown in the following table. P(X = x) %3D 0.1 1 0.2 2 0.2 3 0.3 4 0.1 0.1 (a) Compute P(1 < X < 4). (b) Compute the mean and standard deviation of X. (Round your answers to two decimal places.) mean standard deviationFind the mean, variance, and standard deviation of the following probability distribution by completing the tables below.For the RV X with distribution below, find the distribution of the RV Y with the function: Y = 3X - 2 fx(x) = 1/ 0≤x≤2 else
