7th Edition

ISBN: 9781305254060

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

Concept explainers

It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.

Expected Value

When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known …

Probability Distributions

Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosi…

Basic Probability

The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the prob…

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Textbook Question

Chapter 5.2, Problem 11P

Critical Thinking Suppose two events A and B are mutually exclusive, with P ( A ) ≠ 0 and P ( B ) ≠ 0 . By working through the following steps, you'll see why two mutually exclusive events are not independent.

(a) For mutually exclusive events, can event A occur if event B has occurred? What is the value of P ( A / B ) ?

(b) Using the information from part (a), can you conclude that events A and B are not independent if they are mutually exclusive? Explain.

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Chapter 5.2, Problem 10P

Chapter 5.2, Problem 12P

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Chapter 5 Solutions

Understanding Basic Statistics

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