13. A small bag contains 6 pennies, 5 nickels, 3 dimes, 5 quarters, and 2 one-dollar coins. a. You choose one coin at random from the bag. What is the probability that you choose a one-dollar coin or a dime? b. You choose one coin at random, replace it, and then choose a second coin at random. What is the probability that you first choose a nickel and then choose a penny? c. You choose one coin at random, do not replace it, and then choose a second coin at random. What is the probability that you choose a quarter followed by another quarter?

13. A small bag contains 6 pennies, 5 nickels, 3 dimes, 5 quarters, and 2 one-dollar coins. a. You choose one coin at random from the bag. What is the probability that you choose a one-dollar coin or a dime? b. You choose one coin at random, replace it, and then choose a second coin at random. What is the probability that you first choose a nickel and then choose a penny? c. You choose one coin at random, do not replace it, and then choose a second coin at random. What is the probability that you choose a quarter followed by another quarter?

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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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

Question

A small bag contains 6 pennies, 5 nickels, 3 dimes, 5 quarters, and
2 one-dollar coins.
13.
a. You choose one coin at random from the bag. What is the probability that
you choose a one-dollar coin or a dime?
b. You choose one coin at random, replace it, and then choose a second coin
at random. What is the probability that you first choose a nickel and then
choose a penny?
c. You choose one coin at random, do not replace it, and then choose a
second coin at random. What is the probability that you choose a quarter
followed by another quarter?

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