IITM BS Question 20 - Week 10 Practice

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IITM BS Question 20 - Week 10 Practice | Prasnya

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Q20Numerical3 Marks11 Dec 2022

Suppose a random variable Y represents the number of hours a student study in class on a particular day and the probability mass function of Y is given as: P(Y = y) = { 0.4 for

y = 0

; 0.2 for

y = 1

; 0.4 for

y = 2

; 0 otherwise } Find the value of

\operatorname{\operatorname{Var}}(Y)

(Enter the answer correct to 2 decimal accuracy).

Your answer

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Q20

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11 Dec 2022

Statistics 1 · Week 10

Q20.Suppose a random variable Y represents the number of hours a student study in class on a particular day and the probability mass function of Y is given as: P(Y = y) = { 0.4 for

y = 0

; 0.2 for

y = 1

; 0.4 for

y = 2

; 0 otherwise } Find the value of

\operatorname{\operatorname{Var}}(Y)

(Enter the answer correct to 2 decimal accuracy).

Your Answer

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Check

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