**Student Travel Statistics: Probability Calculation**In a survey of students, 60% were in high school, and 40% were in middle school. Of the high school students, 30% had visited a foreign country. If a surveyed student is selected at random, what is the probability that the student is in high school and has visited a foreign country?___% *[This problem requires calculating the joint probability and aims to educate students on how to determine the likelihood of two combined events.]*

A measure of the likelihood or chance of an event occurring is termed 'probability'. It quantifies…

Answered: In a survey of students, 60% were in…

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 survey of consumers aged 12 and older, respondents were asked how many cell phones were in use by the household. (No two respondents were from the same household.) Among the respondents, 217 answered "none," 293 said "one," 369 said "two," 150 said "three," and 73 responded with four or more. A survey respondent is selected at random. Find the probability that his/her household has four or more cell phones in use. Is it unlikely for a household to have four or more cell phones in use? Consider an event to be unlikely if its probability is less than or equal to 0.05. P(four or more cell phones) =| (Round to three decimal places as needed.) Is it unlikely for a household to have four or more cell phones in use? A. No, because the probability of a respondent with four or more cell phones in use is greater than 0.05. B. Yes, because the probability of a respondent with four or more cell phones in use is greater than 0.05. O C. Yes, because the probability of a respondent with four or…
Approximately 11% of students at BCC are Criminal Justice majors. If you take a simple random sample of 10 BCC students, what is the probability that 4 students are Criminal Justice majors?
Suppose 33.3% of high school students eat pizza and 42% drink soda. If 17.3% of high school students eat pizza and drink soda, what is the probability that a randomly chosen high student will either eat pizza, drink soda, or both?
in a certain county in Michigan, the rate of vaccinated school-aged children is 86%. If 30 children are to be randomly chosen from this county then what is the probability that 25 of them will be vaccinated?
In one town, 61% of adults have health insurance. What is the probability that 5 adults selected at random from the town all have health insurance?
According to a study, 20% of corporate officers are women. Suppose that you select a random sample of 250 corporate officers. What is the probability that in the sample, between 13% and 17% of the corporate officers will be women?
If the probability of having type AB Blood is 0.516, what is the probability that in a group of four people, all four have type AB Blood?
In a review class of 80 students, 70 passed the board exam. If a student is selected at random, what is the probability that he passed?
In a secondary school, 58% of students who is studying in an art course have purchased a drawing board. If 12 students are randomly selected, what is the probability that exactly 7 of them have purchased a drawing board?
A poll is given, showing 30% are in favor of a new building project. If 10 people are chosen at random, what is the probability that fewer than 7 of them favor the new building project?
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In a survey of students, 60% were in high school and 40% were in middle school. Of the high school students, 30% had visited a foreign country. If a surveyed student is selected at random, what is the probability that the student is in high school and has visited a foreign country? %