Answered: What is the probability of choosing two…

Math

Probability

What is the probability of choosing two of the same animal?

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

Question

There are 2 lizards and 5 snakes. Two animals are chosen at random without replacement.

The tree diagram shows the possible outcomes.

What is the probability of choosing two of the same animal?

Note: enter your answer in the form "5/7"

Answer:

First animal
~|N
7
IN
lizard
snake
Second animal
lizard
snake
lizard
snake

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