Let a pair of dice be thrown and the random variable X be

Question

Let a pair of dice be thrown and the random variable X be the sum of the numbers that appear on the two dice. Find the mean or expectation of X

SHAIK AASIF AHAMED · Accepted Answer

Hello student,The sample space contains 6*6=36 elementssum of elements on dice from 2,3,4,.,12p(sum=2) = 1/36;p(sum=3) = 2/36 ;p(sum=4) = 3/36p(sum=5) = 4/36;p(sum=6) = 5/36;p(sum=7) = 6/36p(sum=8) = 5/36;p(sum=9) = 4/36;p(sum=10) = 3/36p(sum=11) = 2/36;p(sum=12) = 1/36Hence expectation=np=2(1/36)+3(2/36)+4(3/36)+5(4/36)+6(5/36)+7(6/36)+8(5/36)+9(4/36)+10(3/36)+11(2/36)+12(1/36)=7Thanks and RegardsShaik AasifaskIITians faculty

Algebra> Let a pair of dice be thrown and the rand...

Let a pair of dice be thrown and the random variable X be the sum of the numbers that appear on the two dice. Find the mean or expectation of X

Manvendra Singh chahar , 10 Years ago

SHAIK AASIF AHAMED

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Algebra> Let a pair of dice be thrown and the rand...

Let a pair of dice be thrown and the random variable X be the sum of the numbers that appear on the two dice. Find the mean or expectation of X

Manvendra Singh chahar , 10 Years ago

SHAIK AASIF AHAMED

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

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