Marketing survey-probability

Reference no: EM13100026

A marketing survey is taken among fast food customers to determine their preference for hot dogs or pizza. Of the 200 respondents selected, 75 were children and 125 were adults. 80 of the respondents preferred pizza and 55 of the children preferred hot dogs.

a. Find the probability that a randomly selected respondent is an adult.

b. Find the probability that a randomly selected respondent prefers hot dogs.

c. Given that the randomly selected person is a child, find the probability that the respondent prefers hot dogs.

d. Find the probability that a child prefers either hot dogs or pizza.

Reference no: EM13100026

Questions Cloud

Probability questions for stats students : Two marbles are selected, one at a time from a jar of marbles containing 10 black, 10 brown, 10 white and 10 green marbles. Let x represent the number of white marbles selected in 2 separate selections from the jar.

Balance of business needs vs the it challenges : Imagine an interview with a company CIO or MIS Director/Manager, perhaps even in your own company. Construct a short list of questions that you would ask.

Productivity enhancers who are comfortable with technology : In an online survey of 4001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the internet for its practical value. Suppose you select a sample of 400 students at your school, and the population ..

Determining chance and probability : As reported by Runner's World magazine, the times of the finishers in the New York City 10-km run are normally distributed with a mean of 61 minutes and a standard deviation of 9 minutes. Let x be the finishing time for a finisher in the New York ..

Marketing survey-probability : A marketing survey is taken among fast food customers to determine their preference for hot dogs or pizza. Of the 200 respondents selected,

Mean time spent on paperwork by all managers : Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.

What most common primary malignant tumor of bones is called : The most common primary malignant tumor of bones is called.

Explain social class in united states society : Explain in detail the three main assumptions of Conflict Theory. In light of these assumptions, how do conflict theorists view stratification (social inequality) based on social class in United States society.

Case study - nordstroms performance goals : At Nordstrom, employee performance is directed towards a single goal - extraordinary service that produces extraordinary sales volumes. Every measure by which an employee is evaluated and rewarded is based on this goal.

User Account

All Pages