e. What is the variance of the probability distribution of the number of households with landline service? c. What is the probability that exactly five of the households in the sampled group have a landline phone service? (Round your answerto 4 decimal places.)X Answer is not complete.Probabilityd. Given the probability distribution, what is the mean number of households with landline service? (Round your answer to 3 decimalplaces.)Mean American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 53.0% of Americanhouseholds still have landline phone service. We decide to randomly call eight households and ask if the home has a landline phone.

It is given that n=8 and p=0.53.

Answered: c. What is the probability that exactly…

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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Similar questions

What is the Weakness of Variance?
A company is producing christmas light strings containing 15 small bulbs.Suppose the success or failure of a bulb is independent of the success or failure of otherbulbs and the probability that a bulb is lightning properly is 0.85.a. When you order a christmas light string, what is the probability of at most 2 of thosesmall bulbs are not lightning properly.b. Find the mean and the variance of bulbs in a string that are not lightning properly.
1) The mean and variance of a sample of 25 data items are 78 and 100, respectively. Use Chebyshev's theorem to describe the distribution of the data.
3. The finish times for marathon runners during a race are normally distributed with a mean of 195 minutes and a standard deviation of 25 minutes. What is the probability that a runner will complete the marathon within 180 minutes?
What is the Discrete Variance when sample size is 82 with a probability of 0.82?
Bespin Car Rental predicts that the annual probability of one of its cars being destroyed in a crash is 1 in 100,000. If destroyed, the value of the property damage to the car equals $51,000. Assume that there are no partial losses; the car is either destroyed in a crash or suffers no loss. Show the damage loss distribution for Bespin Car Rental’s automobiles and calculate the expected value of the loss. Show the calculations for the variance and the standard deviation.
Last year, a person wrote 118 checks. Let the random variable x represent the number of checks he wrote in one day, and assume that it has a Poisson distribution. What is the mean number of checks written per day? What is the standard deviation? What is the variance?
7) A department store manager has monitored the number of complaints received per week about poor service. The probabilities for numbers of complaints in a week, established by this review, are shown in the table. Number of complaints 0 1 2 3 4 5Probability 0.18 0.26 0.35 0.09 0.07 0.05 What is the variance of complaints received per week? Please round your answer to the nearest hundredth.
A survey of prison guards shows that their average starting hourly wage is $30 and the variance is 9. If prison guard is selected, what is the probability that his/her hourly wage will be greater than $27 but less than $35?

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