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Good sir 😢😢Please help me outrandom variable X has a probability mass function defined by 𝑃(𝑋 = 𝑥) = {𝑘(𝑥−1),𝑖𝑓 𝑥 = 2, 3𝑘(8−𝑥),𝑖𝑓 𝑥 = 4, 5, 60𝑜𝑡ℎ𝑒𝑟𝑤𝑖𝑠𝑒 i) Write out the probability mass function of X. ii) Find the expectation of X. iii) Find the variance of X. iv) Find P(2 ≤ X ≤ 5) v) Find 𝑃(𝑋 ≥ 5)
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Good sir 😢😢
Please help me out
random variable X has a probability mass function defined by
𝑃(𝑋 = 𝑥) = {
𝑘
(𝑥
−
1
)
,
𝑖𝑓 𝑥 = 2, 3
𝑘
(
8
−
𝑥
)
,
𝑖𝑓 𝑥 = 4, 5, 6
0
𝑜𝑡ℎ𝑒𝑟𝑤𝑖𝑠𝑒
i) Write out the probability mass function of X.
ii) Find the expectation of X.
iii) Find the variance of X.
iv) Find P(2 ≤ X ≤ 5)
v) Find 𝑃(𝑋 ≥ 5)
I wish i can share it through your WhatsApp line please 🙏🙏🙏