2. The following table gives the probabilities that a probation officer will receive 0, 1, 2, 3, 4 or 5 repFind the variance and standard deviation.Probability P(X)0.15Number of Inquiries X0.PA10.250.360.1840.040.02N3

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Answered: 2. The following table gives the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Find the mean, variance and standard deviation for the probability distribution given below: X -4 6 8 10 P(X) 0.57 0.111 0.21 0.109 A. Mean = B. Variance = C. Standard Deviation =
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Please help this is class work
Suppose that for a given computer salesperson, the probability distribution of x = the number of systems sold in one week is given by the following table. x 1 p(x) 2 3 4 5 0.06 0.10 (a) Find the mean value of x (the mean number of systems sold). 0.11 0.30 6 7 8 0.29 0.12 0.01 0.01 (b) Find the variance and standard deviation of x. (Round your standard deviation to four decimal places.) variance standard deviation How would you interpret these values? (Round your standard deviation to four decimal places.) The mean squared deviation from the mean number of systems sold in one week is A typical deviation from the mean number of systems sold in one week is (c) What is the probability that the number of systems sold is within 1 standard deviation of its mean value? (d) What is the probability that the number of systems sold is more than 2 standard deviations from the mean?

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2. The following table gives the probabilities that a probation officer will receive 0, 1, 2, 3, 4 or 5 rep Find the variance and standard deviation. Probability P(X) 0.15 Number of Inquiries X 0. PAI 0.25 0.36 3 0.18 4. 0.04 0.02