Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

How to find the expected value of the random variable X.

An experiment consists of flipping a fair coin three times and noting the number of heads and tails. A random variable x is definite to be two times the number of heads plus the number of tails.

Find E(x), the expected value of x.

(a) 3.5

(b) 4.0

(c) 4.5

(d) 5.0

(e) None of the others

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922245

Have any Question? 


Related Questions in Statistics and Probability

Afire with faith 1820-18501 how did revivalism help people

Afire with Faith, 1820-1850} 1. How did revivalism help people adjust to the market? 2. Describe the range of antislavery positions, and mention at least three people who exemplified those different positions? 3. How did ...

What were the causes of the cold war also describe the

What were the causes of the Cold War? Also, describe the steps that the USA took to meet the perceived Soviet threat during the 1940s, '50s and '60s. Be sure to include the following topics: Iran crisis of 1946 Iron Curt ...

Wat were the key political features of the roman republic

What were the key political features of the Roman Republic? How and why did this system of government collapse? Does our republic share any of the weaknesses of the Roman Republic?

What is the difference between the standard deviation

What is the difference between the standard deviation, standard error of the mean, and standard error of the estimate? Discuss and offer examples.

At a factory that produces pistons for cars machine 1

At a factory that produces pistons for cars, Machine 1 produced 711satisfactory pistons and 79 unsatisfactory pistons today. Machine 2 produced 630 satisfactory pistons and 270 unsatisfactory pistons today. Suppose that ...

1 compare and contrast the development of northern and

1) Compare and contrast the development of Northern and Southern Europe after the treaty of verdun (has to be a paragraph long, with 3 examples, and answer the following questions: when,who,where, why) 2) Discuss the Pro ...

A parcel of land purchased by clean energy inc is estimated

A parcel of land purchased by Clean Energy, Inc. is estimated to contain 15.25 million tons of anthracite coal. The purchase price was $10,850,000, startup costs were $3,411,000, and the residual value is $1,464,000. If ...

Discuss the changes in beliefs from the end of the

Discuss the changes in beliefs from the end of the pre-modern period into the modern period, providing two (2) examples. Discuss how these changes have impacted current practice in psychology, providing two (2) examples.

Prove that the boundary of a simplex s is the set of all

Prove that the boundary of a simplex S is the set of all the points y in S whose barycentric coordinate representation has at least one zero coordinate.

In a health insurance experiment performed in a super

In a health Insurance experiment performed in a Super Specialty Hospital 4 types of insurance categories patients are expected to occur in the proportion of 9: 3: 3: 1. The observed frequencies are 891 Insured and Surgic ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen