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

Assume a normal distribution for n 300 how many cases

Assume a normal distribution for N = 300. How many cases would one expect to find between +1 and -1 standard deviations around the mean? 102 285 150 204

How could the federal government at the time of the gilded

How could the federal government at the time of the Gilded Age have reduced the economy's exposure to panics and recessions?

Identify a business related management problem translate

Identify a business related management problem translate the management problem into a hypothesis assumption accurately state the null hypothesis and alternative hypothesis.

Tables or graphsusing the internet the text or another

Tables or Graphs Using the Internet, the text, or another reliable source such as a newspaper or periodical site, (not a scholastic or school site like Khan Academy and not Wikipedia), research some important data that h ...

Microsoft word - stat Microsoft Word - STAT Assignment 1.

Microsoft Word - STAT Assignment 1. Anationalrepresentativesurveyofstudentsingrades7-12askedaboutthe experience of these students with respect to sexual harassment. The students were asked whether or not they were harass ...

1 why are researchers often interested in the proportion of

1. Why are researchers often interested in the proportion of total variance that is systematic variance? 2. What would the proportion of total variance that is systematic variance indicate if it were .25? .OO? .98?

What issues did the third world radicalism address how

What issues did the third world radicalism address? How successful were their leaders in implementing their goals? Answer has to be a page minimum

Two pollsters are conducting surveys to estimate the

Two pollsters are conducting surveys to estimate the proportion of Clarkston, Michigan citizens who support a bond issue to build a sports stadium. Both pollsters use the same methods; however, their sample sizes differ. ...

Thirty percent of the time a sale at food shoppe is paid

Thirty percent of the time, a sale at Food Shoppe is paid using a store-issued credit card. A sample of 18 Food Shoppe sales is obtained. Let X represent the number of sales paid for using the store-issued credit card. W ...

An analyst from an energy research institute in california

An analyst from an energy research institute in California wishes to precisely estimate the 99% confidence interval for the average price of unleaded gasoline in the state. In particular, she does not want the sample mea ...

  • 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