3. According to the 2001 Kids Count Data Book, about 80% of children under the age of 2 in theUnited States are immunized. A public health agency in Indiana wants to see how Indianachildren compare with children nationally. They select a random sample of 10 children underthe age of 2 and count the number who have been immunized.a. What is the probability that exactly 3 of the 10 children have been immunized?b. If y represents the number of children out of 10 who have been immunized, what are themean and standard deviation of y?

Let Y be the number of children who have been immunized.It is given that 80% of children under the…

Answered: According to the 2001 Kids Count Data…

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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In a certain state, about 70% of drivers who are arrested for driving while intoxicated (DWI) are convicted. Complete parts a through c below. Question content area bottom Part 1 a. If 12 independently selected drivers were arrested for DWI, how many of them would you expect to be convicted? Choose the correct answer below. A.77 B.99 C.66 D.88 Part 2 b. What is the probability that exactly 8 out of 12 independently selected drivers are convicted? The probability that exactly 8 out of 12 drivers are convicted is enter your response here. (Type an integer or decimal rounded to three decimal places as needed.) Part 3 c. What is the probability that 8 or fewer are convicted? The probability that 8 or fewer drivers are convicted is enter your response here. (Type an integer or decimal rounded to three decimal places as needed.)
According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 64%. Answer the following a round each answer to three decimal places. a. If 13 republicans are selected, find the probability that exactly 9 approve of the death penalty. b. If 13 republicans are selected, find the probability that at least 7 approve of the death penalty. c. If 490 Republicans are randomly selected, find the mean number that approve of the death penalty d. Find the standard deviation of the binomial distribution created in part C.
A survey asked people of different ages whether they get their news by reading the paper. What is the probability that a person surveyed is under 40 and gets the news by reading the paper? Read paper Don't read paper Total 36 Under 40 40 or older Total 4 24 28 A. 45% B. 20% C. 14% D. 5% 16 52 40 40 80
An economics professional body estimates that 80% of the students taking undergraduate economics courses are in favour of studying of statistics as part of their studies. If this estimate is correct, what is the probability that more than 790 undergraduate economics students out of a random sample of 1000 will be in favour of studying statistics?
Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the respondents, 2346 said they are willing to donate organs after death. In this survey conducted for Donate Life America, 100 adults were surveyed in each state and the District of Columbia, and results were weighted to account for the different state population sizes. a. What percentage of respondents said that they are willing to donate organs after death? b. Based on the poll results, what is the probability of randomly selecting an adult who is willing to donate organs after death? c. What term is used to describe the sampling method of randomly selecting 100 adults from each state and the District of Columbia?
The histogram below gives the length of service of members of the Department of English at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty. 1) What percent of the department faculty have less than 15 years of service? 2) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 5 and 45 years of service? 3) What is the probability the representative above will have less than 20 years of service given that the person has less than 25 years of service?
About 8% of males are colorblind. A researcher needs colorblind subjects for an experiment and begins checking potential subjects. a. On average, how many men should the researcher expect to check before finding one who is colorblind? b. What's the probability that she won't find anyone who is colorblind among the first 4 men she asks? c. What's the probability that the first colorblind man found will be the 6" man checked? d. What's the probability that she finds someone who is colorblind before checking the 7th man?
A recent survey by a market research company found that 56% of all US households have internet access. Answer the following as decimals rounded to three places. a. If five households are chosen at random, what is the probability that all five have internet access? Preview b. What is the probability that none of the five have internet access? Preview c. If five households are chosen, what is the probability that at least one household has internet access? Preview
It is estimated that 45% of households own a riding lawnmower. A sample of 15 households is studied. What is the probability that exactly 7 of these on a riding lawnmower.
Below are the numbers of patients classified as underweight, normal weight, overweight and obese according to their diabetes status. If a patient is selected at random: What is the probability that they are overweight? What is the probability that they are obese and diabetic? What proportion of the diabetics are obese? What proportion of normal weight patients are not diabetic? What proportion of patients are normal weight or underweight? Underweight Normal Weight Overweight Obese Row Totals Diabetic 8 34 65 43 Not Diabetic 12 85 93 40 Column Totals
A recent poll indicated that about 83% of U.S. households had access to a high-speed Internet connection. a. Suppose 100 households were randomly selected from the United States. How many of the households would you expect to have access to a high-speed Internet connection? b. If 20 households are selected randomly, what is the probability that exactly 12 have high-speed access? c. If 20 households are selected randomly, what is the probability that 12 or fewer have high-speed access? a. Suppose 100 households were randomly selected from the United States. How many of the households would you expect to have access to a high-speed Internet connection?
According to a recent study 0.45 of the population is left handed. If you randomly select 7 people, what is the probability that at least one of the them is left handed? NOTE: Round your answer to four decintal places

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