Evaluate the cumulative distribution function, F, for the given random variable, X, at specified values: also determine the requ
ested probabilities. f(x) = (125/31) (1/5)^x, x = 1, 2, 3 Give exact answers in form of fraction. F(1) = ____________F(2) = __________F(3) =____________ (a) P(X lessthanorequalto 1.5) =____________(b) P(X lessthanorequalto 3) =___________(c) P(X > 2) =__________(d) P(1 < X lessthanorequalto 2) =______
1 answer:
Answer:
Step-by-step explanation:
Given that x is a random variable with probability density function given as
To find cumulative function for x
F(1) =
F(2) =
F(3) =
a) P(X lessthanorequalto 1.5)
=
(b) P(X lessthanorequalto 3) =__F(3) = 1_________
(c) P(X > 2) =__f(3) = 1/31________
(d) P(1 < X lessthanorequalto 2) =__f(2) = 25/31____
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Answer:
-28x
Step-by-step explanation:
I'd presume you forgot the x in your answer when you turned it in?
85+92+96+89+(98) = 460
460 / 5
92
Answer's 98.
I believe the answer is B.
Hope this helps <3
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Step-by-step explanation: