Homework Housework Outside Employment Recreation OtherTotalMale2915202396Female181726394104Total4732466213200 A random sample of college students were asked to respond to a survey about how they spendtheir free time on weekends. One of the questions, summarized in the contingency table givenabove, asked each respondent to choose the one activity that they most likely participated in on aSaturday morning. The activity choices were homework, housework, outside employment,recreation, or other.If one student is randomly chosen from the group, What is the probability that the student isfemale?0.230.520.480.31O O

Obtain the probability that the student is female. The probability that the student is female is…

Answered: A random sample of college students…

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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A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke), 130 people in the 23-30 age bracket (31 of whom smoke), 100 people in the 31-40 age bracket (30 of whom smoke). If one person is randomly selected from this sample find the probability of getting someone who was isage 18 to 22 or smokes. A. 0.593 B.0.695 C.0.468 D.0.607
The results of CNN’s 2012 presidential election poll are given. Use the following table to answer the questions. Obama Romney Other/No Answer Male Voters 21% 25% 1% Female Voters 29% 23% 1% a) Find the probability that a polled voter voted for Obama. b) Find the probability that a polled voter voted for Romney OR is a female. c) What is the probability that a polled voter didn’t vote for Romney AND is not a female
A study of consumers smoking habits include 160 people in the 18-22 age bracket (49 of whom smoke), 133 people in the 23-30 age bracket (37 of whom smoke), and 85 people in the 31-40 age bracket (21 whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or does not smoke.
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Students Given Four Quarters Students Given a $1 Bill O.A.0.659 Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. OB.0.675 OC.0.292 Purchased Gum 27 14 OD.0.307 Kept the Money 13 34
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 following data represent the number of siblings (brothers and sisters) in the families of 20 students who were surveyed. O siblings = 2, 1 sibling = 3, 2 siblings =7, 3 siblings = 2, 4 siblings = 2. What is the probability of randomly selecting a student with 2 or more siblings? Input three-decimal fraction or percentage. Answer:
A certain math conference has 9495 attendees. Of these individuals, 6047 are college professors, and 4174 are female. Of the college professors, 3218 are female. What is the probability that a randomly selected attendee is female or a college professor? Answers should be decimals (not percentages) correct to three decimal places.
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Not Indicated Drug Use Is Indicated Subject Uses Drugs 37 4. Subject Is Not a Drug User 17 35 The probability of a false positive test result is
Use the data in the following table that shows results from a polygraph (lie detector) conducted by researchers Charles R. Honts and Gordon H. Barland. In each case, it was known if the subjects lied or did not lie, so the table indicates when the polygraph was correct. If two different subjects are randomly selected without replacement, find the probability that they both lied.
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Indicated Drug Use Is Not Indicated Subject Uses Drugs 42 11 Subject Is Not a Drug User 17 34

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