5. In a group of 100 students, 35 can speak Korean, 45 can speak Chinese and 10 can speak both languages. If a student is selected at random, what is the probability of selecting a student who a. Can speak Chinese or Korean? b. Can speak Chinese only? c. Can speak Korean only? 6. In a deck of 52 cards, what is the probability of selecting a queen on the first draw and queen on the second draw if a. Replacement is not allowed? b. Replacement is allowed?

5. In a group of 100 students, 35 can speak Korean, 45 can speak Chinese and 10 can speak both languages. If a student is selected at random, what is the probability of selecting a student who a. Can speak Chinese or Korean? b. Can speak Chinese only? c. Can speak Korean only? 6. In a deck of 52 cards, what is the probability of selecting a queen on the first draw and queen on the second draw if a. Replacement is not allowed? b. Replacement is allowed?

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

5. In a group of 100 students, 35 can speak Korean, 45 can speak Chinese and 10 can
speak both languages. If a student is selected at random, what is the probability of
selecting a student who
a. Can speak Chinese or Korean?
b. Can speak Chinese only?
c. Can speak Korean only?
6. In a deck of 52 cards, what is the probability of selecting a queen on the first draw and
queen on the second draw if
a. Replacement is not allowed?
b. Replacement is allowed?

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