menu-iconExamlexExamLexServices

Discover

Ask a Question
  1. All Topics
  2. Topic
    Mathematics
  3. Study Set
    Statistical Investigations
  4. Exam
    Exam 12: Modeling Randomness
  5. Question
    Suppose X Is a Random Variable with E(X)=5 and σ
Solved

Suppose X Is a Random Variable with E(X)=5 and σX2=4

Question 118

Question 118

Short Answer

Suppose X is a random variable with E(X)=5 and σX2=4. Define Y=2X+8.
-Calculate the variance of Y.

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q113: An "instant lottery" is played by buying

Q114: A tire manufacturer designed a new tread

Q115: In a large population of college students,

Q116: An online psychic (psi) ability or extrasensory

Q117: Suppose that 45% of customers at the

Q119: A rental car company has noticed that

Q120: Based on her past experience, a professor

Q121: There are ten Academic Senate faculty in

Q122: The volume in a can of soda

Q123: Consider a random process that involves repeatedly

Examlex

ExamLex

About UsContact UsPerks CenterHomeschoolingTest Prep

Work With Us

Campus RepresentativeInfluencers

Links

FaqPricingChrome Extension

Download The App

Get App StoreGet Google Play

Policies

Privacy PolicyTerms of ServiceHonor CodeCommunity Guidelines

Scan To Download

qr-code

Copyright © (2025) ExamLex LLC.

Privacy PolicyTerms Of ServiceHonor CodeCommunity Guidelines