Answered: In tossing 2 fair coins, what is the…

Math

Probability

In tossing 2 fair coins, what is the expected number of heads? Let the random variable X represent the number of heads.

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

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

In tossing

fair coins, what is the expected number of heads?

Let the random variable X represent the number of heads.

Expert Solution

Step 1 Introduction:

Probability: Probability is a chance factor that occurs at every outcome of a random experiment. Probability is defined as the ratio of number of favorable outcome to the total number of possible outcomes.

The formula for the probability is given by

p = A / S

where A is number of favorable outcome

S is the total number of possible outcomes or it is also known as Sample Space(SS).

Probability value always lies between 0 and 1.

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