not a graded question - practice question Suppose that in a certain metropolitan area, 95% of all households have cable TV. Let x denote the number among four randomly selected households that have cable TV. Then x is a binomial randomvariable with n = 4 and p = 0.95. (Use SALT. Round your answers to four decimal places.)USE SALT(a) Calculate p(2) = P(x = 2).0.0338XInterpret this probability.the probability that at most two of the four randomly selected households have cable TVthe probability that more than two of the four randomly selected households have cable TVthe probability that at least two of the four randomly selected households have cable TVthe probability that exactly two of the four randomly selected households have cable TVthe probability that less than two of the four randomly selected households have cable TV(b) Calculate p(4), the probability that all four selected households have cable TV.0.8145(c) Calculate P(x ≤ 3).0.9999X

Answered: Suppose that in a certain metropolitan…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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What are the two types of incorrect decisions?
An ethical data analyst would be least likely to Multiple Choice check data for accuracy. cite his/her data sources and their limitations. acknowledge sources of financial support. rely on consultants for all calculations.
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The scores of a test for an engineering class of 30 students are shown here. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) Scores: 81, 54, 55, 56, 96, 86, 98, 61, 90, 52, 92, 76, 66, 84, 79, 70, 71, 88, 62, 74, 53, 65, 55, 78, 79, 58, 60, 72, 51,80 (a) Determine the frequency (f), midpoint (x), and xf for each range and fill in the table below. (First, organize the scores into the following ranges: 50-59, 60-69, 70-79, 80-89, and 90-99.) (b) Using the following equation, determine the mean value (x) and fill in the table below. Σ(XA) n X = (c) Calculate (x − x) for each range and fill in the table below. (d) Calculate (x - x)²f for each range and fill in the table below. Range Frequency f Midpoint x 50-59 60-69 70-79 80-89 90-99 S = Enter a number. S = (e) Using the following equation, compute the standard deviation of the class scores. Σ(x-x) ²f n - 1 Σ(x-x) ²4 n - 1 = xf 29 X X - X (x - x)²f
A random sample of BYU-Idaho students was surveyed and asked if they were in favor of retaining the penny as a form of currency in the United States. Out of the 116 women surveyed, 80 said that they were in favor of retaining the penny as a form of currency. Of the 137 men surveyed, 91 said that they were in favor of retaining the penny. Difference = Women - Men The picture below is the question. Use the information above to help.
Roads A, B, and C are the only way to escape from a certain provincial prison. Prison records show that, of the prisoners who tried to escape, 17% used road A, 13 % used road B, the remainder used road C. The records also indicate that 72 % of those who tried to escape using road A were captured. 62 % of those using road B were captured, and 21% of those using road C were captured. Use four decimals in your answers. (a) What is the probability that a prisoner escaping from this provincial prison is not captured? 0.65 (b) What is the probability that a captured prisoner used road A in their escape attempt? (c) What is the probability that a prisoner who didn't get captured has used road C?
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