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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According to a recent poll about 33% of American adults are planning to dress up for Halloween this year. 250 American adults were asked "Are you planning to dress up for Halloween this year?. The number of surveyed people that responded “Yes” is recorded. The random variable X is ....what? The number of trials n is ....what? The probability of success is ...what %. The probability of failure is ...what %
9. To investigate how often families eat at home, a researcher surveyed 100 adults living with children under the age of 18 years. The survey results are shown below. What is the probability that a randomly selected family eats at least two meals at home per week? Number of Meals eaten at home per week 0 1 2 3 or more Number of Survey Responses 25 30 25 20
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?
Use the following results from a test for marijuana use. Among 144 subjects with positive test results, there are 21 false positive results. Among 139 negative test results, there are 4 false negative results. a. How many subjects are included in the study? b. How many of the subjects had a true negative result? c. What is the probability that a randomly selected test subject had a true negative result?
. Giving a test to a group of students, the grades and gender are summarized below. If one student was chosen at random, find the probability that the student was female or earned a B. A B C Total Male 8 18 13 39 Female 10 4 12 26 Total 18 22 25 65
The class I'm taking is statistics! I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. Thank you!
. If tossing a loaded coin gives heads 60% of times, what is the likelihood (probability) of observing heads 50 times or fewer out of 100 tosses? 12 The probability of observing heads 50 times or fewer out of 100 would be 0.03 or 3 percent. use excel.
Frieda made the following two-way table about the color and size of the marbles in a bag. Blue Red Clear Total Small 21 17 32 70 Large 4 13 Total 25 19 39 83 What is the probability of selecting a small or blue marble? 0.843 0.301 0.253 0.892
The 2015 National Vital Statistics Report provides information on how the nearly four million live births that occurred in 2014 broke down by birth order. Choose at random a baby born in the United States in 2014. Baby's birth order Probability mean = 1 2 0.391 0.319 The few babies who were 9th or more in birth order are included in the "8" birth order group. In 2014, 39.1% of the nearly 4 million live births in the United States were to first-time mothers. 3 5 6 7 4 0.168 0.072 0.028 0.012 0.005 standard deviation = What are the properties of the sampling distribution of the proportion of births to first-time mothers in random samples of 500 births from 2014? (Enter your answer for the mean rounded to three decimal place and your answer for the standard deviation rounded to four decimal places.) 8 0.005
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
A researcher wanted to study the commuting habits of community college students and faculty. He wanted to compare their mode of transportation to the college. He asked if they walk, bike, or drive to campus. The following table represents the data that was collected. Walks to campus Bikes to campus Drives to campus Total Students 70 22 78 170 Faculty 5 4 23 32 Total 75 26 101 202 A. Find the probability that a randomly selected member of faculty walks to campus. B. If you are randomly selecting a person from those who bike to campus, what is the probability that you will select a student. C. Perform a Test of Independence to determine if commuting habits are dependent on being a student or a faculty.

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