A store sells four brands of VCRs. During the past year the following number of sales of each of the brands were found. Brand A-75 Brand B-60 Brand C-90 Brand D-75 What is the empirical probability that a randomly selected consumer who buys a VCR at this store will pick the following brands? brand A brand B brand C brand D

A store sells four brands of VCRs. During the past year the following number of sales of each of the brands were found. Brand A-75 Brand B-60 Brand C-90 Brand D-75 What is the empirical probability that a randomly selected consumer who buys a VCR at this store will pick the following brands? brand A brand B brand C brand D

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A bakery sells three types of bread: sourdough, wheat, and rye. The sales data from the past month shows that 40% of the bread sold was sourdough, 30% was wheat, and 30% was rye. On a particular day, the bakery sold 100 loaves of bread. What is the probability that the bakery sold more than 50 loaves of sourdough bread?
In a certain town, 62% of the residents enjoy riding roller coasters. Alfred takes a sample of 75 residents from this town. What is the probability that fewer than 58% of the residents in the sample enjoy riding roller coasters? 0.238 0.433 0.714 0.762
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A kid has three remote controlled toy race cars and he plays with them 25%, 35% and 40% of the time respectively. The remote controls of the cars can sometimes malfunction, namely 5%, 7% and 9% of the time. If during a race the remote malfunctioned, what is the probability that he was playing with his first car? O A. 0.0125 OB. 0.1712 OC. 0.4932 OD. 0.3356
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Samsung wants to run ads for its new Galaxy Phone. Based on a survey conducted, Samsung assigned probabilities to the following events: individual purchased a Galaxy Phone with a probability of 55%, individual recalls seeing the ad with a probability 70%, and individual did not purchase the Galaxy Phone nor recalls seeing the ad with a probability of 40%. What is the probability that the individual recalls seeing the ad or purchases the Galaxy Phone? a. 60% b. 30% c. None of these d. 65% e. 45%
A Fast Food restaurant gives a discount to anyone who finishes their food in under 5 minutes. 44% of the restaurant' s customers choose to eat a Burger, 28% choose a bowl of Pasta, and the rest choose a Salad dish. In the last month, 18% of Burger-eating customers, 11% of Pasta-eating customers, and 20% of Salad-eating customers achieved the discount. a. What is the probability of a customer choosing to eat Salad and achieving the discount? Answer in exact fraction, or rounded to at least 4 decimal places b. Determine the probability of a randomly chosen customer achieving the discount. Answer in exact fraction, or rounded to at least 4 decimal places
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An aerosolized vaccine for measles was developed in Mexico and has been used on 44 million children since 1980. Aerosolized vaccines have the advantages of being able to be administered by people without clinical training and do not cause injection‐associated infections. The percentage of children developing an immune response to measles after receiving the subcutaneous injection of the vaccine is 95%,95%, and for those receiving the aerosolized vaccine, it is 85%85% . There are 2020 children to be vaccinated for measles using the aerosolized vaccine in a small rural village in India. We are going to count the number who developed an immune response to measles after the vaccination. (b) What is the probability that at least one child does not develop an immune response to measles after receiving the aerosolized vaccine? (Enter your answer as a proportion rounded to four decimal places.)