Answered: 1. There are 15 balls, each with unique…

1. There are 15 balls, each with unique color, in an urn. How many ways can 3 balls be drawn from the urn without replacement? a. 2,730 ways b. 15 ways c. 45 d. 3,375 ways

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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Question

please answer question 1 and 2. choose the letter of the correct answer.

1. There are 15 balls, each with unique color, in an urn. How many ways can 3 balls be drawn from the urn without replacement?

a. 2,730 ways

b. 15 ways

c. 45

d. 3,375 ways

2. How many ways can a 4-digit pin code be generated if it has to start with 1 and end with either 0 or 9 if repetition is allowed?

a. 150

b. 50

c. 200

d. 100

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