Sum of probabilities: k+2k+3k=6k=1⇒k=61.
P(X≤2)=P(0)+P(1)+P(2)=6k=1.
The random variable X has a probability distribution P(X) of the following form, where k is some number.
P(X=x)=⎩⎨⎧k,2k,3k,0,if x=0if x=1if x=2otherwise
Then P(x≤2) is :
Held on 15 Jun 2023 · Verified 13 Jul 2026.
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