Spectrum provides cable television and internet service to millions of customers. Suppose that the management of Spectrum subjectively assesses a probability distribution for the number of new subscribers next year in the state of New York as follows.f(x)100,000 0.05200,000 0.20300,000 0.25400,000 0.35500,000 0.10600,000 0.05(a) Is this probability distribution valid? Explain.This probability distribution ---Select--- valid because ---Select--- | for x = 100,000, 200,000, 300,000, 400,000, 500,000, 600,000. Also, f(x)(b) What is the probability Spectrum will obtain more than 400,000 new subscribers?(c) What is the probability Spectrum will obtain fewer than 200,000 new subscribers?

Answered: Image /qna-images/answer/e5a47ea6-f5d4-4ca3-ae71-09eb4bde1940.jpg

Answered: f(x) 100,000 0.05 200,000 0.20 300,000…

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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The probability distribution of number of televisions per household in a small town x 0 1 2 3 P(x) 0.03 0.11 0.33 0.53 (a) Find the probability of randomly selecting a household that has one or two televisions.
I am in Prob/Stat! Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places. x P(x) 0 0.15 1 0.15 2 0.2 3 0.5 I have multiplied P by x, thus, P(x) as such: 0.15(0) = 0 0.15(1) = 0.15 0.2(2) = 0.4 0.5(3) = 1.5 I then add the four together to get the sum of; 2.05. What am I doing wrong? Am I not finding the standard deviation correctly?? Thank you in advance!
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Suppose the probability distribution of x, the number of defective tires on a randomly selected car checked at a certain inspection station, is given in the following table. 1 4 p(x) 0.54 0.18 0.07 0.03 0.18 (a) Calculate the mean value of x. (b) What is the probability that x exceeds its mean value?
Is the following distribution a probability distribution? (x, P(X)) = (-2,1.23); (-1, 0.15) ; (0, -1.20); (1, 0.52); (2, 0.30) There are five ordered pairs: X values and their probabilities for example P(1) = 0.52. X -2 -1 0 1 2 P(X) 1.23 0.15 –1.20 0.52 0.30
The probability distribution of x, the number of defective tires on a randomly selected automobile checked at a certain inspection station, is given in the following table. x 0 1 2 3 4 p(x) 0.56 0.17 0.06 0.03 0.18 (a) Calculate the mean value of x. μx = tires per car (b) Interpret the mean value of x in the context of a long sequence of observations of number of defective tires. In repeated inspections of cars at this station, the mean number of defective tires is tires per car. (c) What is the probability that x exceeds its mean value? P(x > μx) =

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