According to The World Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomlysample 168 people in Uganda. Let X = the number of people who have access to electricity.(a) What is the probability distribution for X?O x ~ G(0.09)X ~ G(168)OX~ P(0.09)Ox~ B(0.09, 168)OX~ B(168, 0.09)(b) Using the formulas, calculate the mean and standard deviation of X. (Enter your mean to two decimal places andround your standard deviation to four decimal places.)meanpeoplestandard deviationpeople(c) Use your calculator to find the probability that 15 people in the sample have access to electricity. (Round your answerto four decimal places.)(d) Find the probability that at most ten people in the sample have access to electricity. (Round your answer to fourdecimal places.)(e) Find the probability that more than 25 people in the sample have access to electricity. (Round your answer to fourdecimal places.)

Answered: Image /qna-images/answer/efe31b88-b55c-4bdc-9e5b-07f527400842.jpg

Answered: According to The World Bank, only 9% of…

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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According to a survey, 30% of college students said that they spend too much time on Facebook. Suppose this result holds true for the current population of all college students. A random sample of six college students is selected. a. Define the random variable X b. X takes on what values?X = ..................................................... c. Determine the number of trials n and the probability of success for this binomial distribution. d.Find the probability that exactly three of these six college students will say that they will spend too much time on Facebook. Round your answer to three decimal places.
If Y is a random variable from an exponential distribution with a mean of 5; what is the probability that Y is more than 7?
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
The probability that a randomly chosen student in a statistics class submits his/her homework on time is 0.10. Each student does homework independently. In a statistics class of 50 students, what is the probability that at least 5 will do their homework on time?
suppose we select an SRS of 1010 adults. If it is believed that 60% of all adults are very satisfied with their lives, what is the probability that at least 610 adults in our sample are very satisfied with their lives?Let X be the number (out of 1010) of adults who are very satisfied with their lives. What distribution should X have? Why?
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X is normally distributed with ?=14 and ?= 4. Find the probability that x is between 1 and 18.
A survey showed that 81% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 20 adults are randomly selected, find the probability that no more than 1 of them need correction for their eyesight. Is 1 a significantly low number of adults requiring eyesight correction? The probability that no more than 1 of the 20 adults require eyesight correction is (Round to three decimal places as needed.)
The probability distribution itself is assumed to be a beta distribution. True or false?
40% of consumers believe that cash will be obsolete in the next 20 years. Assume that 6 consumers are randomly selected. Find the probability that fewer than 3 of the selected consumers believe that cash will be obsolete in the next 20 years. The probability is (Round to three decimal places as needed.) ...
A survey showed that 79% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 15 adults are randomly selected, find the probability that at least 14 of them need correction for their eyesight. Is 14 a significantly high number of adults requiring eyesight correction? The probability that at least 14 of the 15 adults require eyesight correction is nothing. (Round to three decimal places as needed.)
The Physicians' Foundation reported that almost 50% of all general practice physicians in the United States do not recommend medicine as a career. Let x represent the number of sampled general practice physicians who do not recommend medicine as a career. Consider a random sample of 12 physicans. Find the probability that exactly 6 of them do not recommend medicine as a career.

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