a group of 200 students includes 120 who watch television news, 80 who read a newspaper, and 60 who watch television and read a newspaper. if a student is selected at random, find the probability that the student will a) watch television news or read a newspaper? b) neither watch television news nor read a newspaper? c) only watch television news?

a group of 200 students includes 120 who watch television news, 80 who read a newspaper, and 60 who watch television and read a newspaper. if a student is selected at random, find the probability that the student will a) watch television news or read a newspaper? b) neither watch television news nor read a newspaper? c) only watch television news?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Each day a veterinary clinic schedules 10 horses to be examined for a respiratory disease. The cost of each test is $80. The probability that a horse has the disease is 0.1. If the horse has the disease, the treatment costs $500. a) What is the probability that at least three horses will be diagnosed with the disease on any given day?b) What is the probability that at most four horses will be diagnosed with the disease on any given day?c) What is the expected profit per day that the clinic makes from examining horses and treating them for this disease?
In a group made up of 16 boys and 18 girls, we choosetwo random people. What is the probability that:a) the two people chosen are boys?b) the two people chosen are girls?c) a boy and a girl are chosen?
In 2020, 47% of Americans travelled for Thanksgiving. Suppose 8 random Americans are surveyed. a) What is the probability at least one travelled during Thanksgiving? b) If we surveyed 350 million Americans, how many of them would we expect did not travel for Thanksgiving? I.
In a sample of 1000 public and private high school students, a student is selected at random. Find the probability the student is planning on a STEM career given that they attend a private high school. Find the probability a student is planning a non-STEM career or attending public school.
Suppose we represent with the letters B and b the genes that determine the color of a person's eyes. If the person has two b genes, the person has blue eyes; otherwise, the person has brown eyes.Find the probability that a person has two b genes, given that the person has the following eye color. a) brown eyes b) blue eyes
On a veterinary clinic, animal statistics were discussed. One vet told that he read a report that for every 100 stray dogs, there were 20 more male than females. a) If 20 dogs were picked at randomly from a representative group, what is the probability that at least 15 of them would be female? b) What is the probability that one should pick more than 6 male dogs before she finds one female? c) What is the probability that the fifth female dog is obtained in eight or fewer pick?
In a certain school, 17% of the students are enrolled in a psychology course and 28% are enrolled in a foreign language course. Of those enrolled in a psychology course, 32% are enrolled foreign language course. a) What is the probability of a student enrolling in both a foreign language course and a psychology course? b) Find the probability that a student enrolled in a foreign language course or a psychology course.
3) If my Halloween candy bag contains 4 Reese's, 6 bags of Skittles, and 30 other pieces of candy, what is the probability of: a) Not choosing Reese's? b) Of choosing Skittles? 4
A random sample of 250 working adults found that 74% access the Internet at work, 88% access the Internet at home, and 72% access the Internet at both work and home. a) Find the probability that a person in this sample selected at random accesses the Internet at home or at work? b) Find the probability that a person in this sample selected at random accesses the Internet at home only? c) How many people in this sample do not access the Internet at work or at home?
Find the probability that a randomly chosen student a) studies music b) studies music or is female c) is male, given that they do not study Spanish
In a class of 267 seniors, 94 study Spanish, 95 study Chemistry, 165 study Mathematics, 18 study Spanish and Chemistry, 75 study Chemistry and Math, 20 study Math and Spanish and 15 study all three subjects. Make a Venn diagram to illustrate the data and then find the probability that a student selected at random studies: a) either Chemistry or Math? b) neither Spanish nor Mathematics? c) at most 1 subject?
A couple plans to have three children. What is the probability thata) they have all girls? b) they have at least one boy?