For the questions below enter the value only. Round to the nearest hundredth, if necessary. 1. What is the probability that a randomly chosen student has 4 cars? 2. What is the probability that a randomly chosen student has less than 2 cars? 3. What is the probability that a randomly chosen student has at least 3 cars?
For the questions below enter the value only. Round to the nearest hundredth, if necessary. 1. What is the probability that a randomly chosen student has 4 cars? 2. What is the probability that a randomly chosen student has less than 2 cars? 3. What is the probability that a randomly chosen student has at least 3 cars?
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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Transcribed Image Text:Car Census
A census was conducted at a school. All of the students were asked how many cars their family owns. The
results are below.
Number of Cars
4
Probability
0.005 0.120 0.125 0.500 0.250
For the questions below enter the value only. Round to the nearest hundredth, if necessary.
1. What is the probability that a randomly chosen student has 4 cars?
2. What is the probability that a randomly chosen student has less than 2 cars?
3. What is the probability that a randomly chosen student has at least 3 cars?
4. What is the expected number of cars?
5. What is the standard deviation?
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