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 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ||--------------------|------|------|------|------|-------|------|------|------|| Probability | 0.391| 0.319| 0.168| 0.072| 0.028 | 0.012| 0.005| 0.005|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.If we took a random sample of 500 birth certificates from 2014, what is the probability that the sample would contain less than 35% of first births? (Enter your answer rounded to four decimal places.)\[ P(\hat{p} < 0.35) = \]

The sample of 500 birth certificates from 2014 were taken.The population proportion for first birth…

Answered: The 2015 National Vital Statistics…

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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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 U.S. Coast Guard maintains a database of the number, source, and location of oil spills in the U.S. navigable and territorial waters. The following is a probability distribution for location of oil spill events. [Source: Statistical Abstract of the United States.] Location Probability Atlantic Ocean 0.008 Pacific Ocean 0.037 Gulf of Mexico 0.233 Great Lakes 0.020 Other Lakes 0.002 Rivers and canals 0.366 Bays and sounds 0.146 Harbors 0.161 Other 0.027 If an oil spill is selected at random from the database, what is the probability: The oil spill occurred in an ocean? The oil spill occurred in a lake or harbor? The oil spill did not occur in a lake, ocean, river, or canal?
According to government data, 73% of employed women have never been married. Rounding to 4 decimal places, if 15 employed women are randomly selected: a. What is the probability that exactly 2 of them have never been married? b. That at most 2 of them have never been married? c. That at least 13 of them have been married?
Approximately 90% of all people are right handed. Consider a grouping of 20 people. What is the probability that 5 of them will be right handed
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
What is the probability of selecting a veteran that lives in your city given they live in your states? State population: 28,995,881 City population: 978,908 Veteran population: 36,094 Country population: 328,239,523
5. Big babies: The Centers for Disease Control and Prevention reports that 25% of baby boys 6-8 months old in the United States weigh more than 20 pounds. A sample of 150 babies is studied. a. Approximate the probability that more than 40 weigh more than 20 pounds. b. Approximate the probability that 35 or fewer weigh more than 20 pounds. c. Approximate the probability that the number who weigh more than 20 pounds is G 20
A technology company is forming a task force of six members to deal with urgent quality issues. The positions will be filled by randomly chosen qualified applicants. The qualified applicants consist of five managers and ten engineers. a. What is the probability that the number of managers is the same as the number of engineers on the task force? b. What is the expected number of engineers chosen?
The population of a particular country consists of three ethnic groups. Each individual belongs to one of the four major blood groups. The accompanying joint probability table gives the proportions of individuals in the various ethnic group-blood group combinations. Blood Group A B АВ 1 0.082 0.114 0.011 0.004 Ethnic Group 2 0.127 0.141 0.018 0.003 3 0.215 0.202 0.063 0.020 Suppose that an individual is randomly selected from the population, and define events by A = {type A selected}, B = {type B selected}, and C = {ethnic group 3 selected}. (a) Calculate P(A), P(C), and P(A n C). (Enter your answers to three decimal places.) P(A) = Р(С) P(A n C) = = (b) Calculate both P(A|C) and P(C|A). (Round your answers to three decimal places.) P(A|C) %3D P(C|A) %3D Explain in context what each of these probabilities represents. (Select all that apply.) If a person has type A blood, the probability that he is from ethnic group 3 is given by P(C|A). If we know that the individual came from ethnic…
KE It is estimated that 1.9% of the parts produced by a certain factory's assembly line will be defective. If 700 parts are selected at random, find the probability that at least 10 parts are defective. Click here to view page 1 of the Areas under the Normal Curve Table. Click here to view page 2 of the Areas under the Normal Curve Table The probability that at least 10 parts are defective is (Round to four decimal places as needed.).
Approximately 90% of all people are right handed. Consider a grouping of ten people. Assume the requirements for a binomial distribution have been satisfied. a. What is the probability that 4 of them will be right handed? b. What is the probability that at least 3 of them will be right handed?
A $20 bill, two $10 bills, three $5 bills and four $1 bills are placed in a bag. If a bill is chosen at random, what is the expected value for the amount chosen? Round to the nearest hundredth.

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