IITM BS Question 5 - Week 2 Practice

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IITM BS Question 5 - Week 2 Practice | Prasnya

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Q5Comprehension2 Marks26 Oct 2025

Passage

Based on the above data, answer the given subquestions. Let

X_1,X_2

be i.i.d. random variables with the following probability mass function:

f_X(k)=\begin{cases}\frac{3}{4}\left(\frac{1}{4}\right)^{k-1}, & k=1,2,3,\ldots\\0, & \text{otherwise}\end{cases}

Define a new random variable

Z=X_1+X_2

. Find the value of

P(Z=2)

00:00

26 Oct 2025

Statistics 2 · Week 2

Q5.Define a new random variable

Z=X_1+X_2

. Find the value of

P(Z=2)

.@passage

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