A discrete random variable takes on values 0,1,2 and 3 only. Given that 𝑃(𝑥 ≤ 2) =

0.8 , 𝑃(𝑥 ≤ 1) = 0.4 and 𝐸(𝑥) = 1.6. Find the standard deviation

asked by guest
on Jan 13, 2025 at 9:08 am



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