Mathcat444
05.02.2021 •
Mathematics
Evaluate the cumulative distribution function of a binomial random variable with n equals 3 and p equals 1 divided by 6 at specified points. Give exact answers in form of fraction. Upper F left-parenthesis 0 right-parenthesis equals Upper F left-parenthesis 1 right-parenthesis equals Upper F left-parenthesis 2 right-parenthesis equals Upper F left-parenthesis 3 right-parenthesis equals
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Ответ:
125/216
25/72
5 / 72
1 / 216
Step-by-step explanation:
n = 3
p = 1/6 = 0.1667
Using the relation :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
F(0) = 3C0 * (1/6)^0 * (1 - 1/6)^3
F(0) = 1 * 1 * (5/6)^3
F(0) = 1 * 125/216
F(0) = 125 / 216
F(1) = 3C1 * (1/6)^1 * (1 - 1/6)^2
F(1) = 3 * 1/6 * (5/6)^2
F(1) = 3 * 1 / 6 * 25/36
F(1) = 75 / 216
F(1) = 25 / 72
F(2) = 3C2 * (1/6)^2 * (1 - 1/6)^1
F(2) = 3 * 1 / 36 * (5/6)^1
F(2) = 3 * 1/36 * 5/6
F(2) = 15/216
F(2) = 5/72
F(3) = 3C3 * (1/6)^3 * (1 - 1/6)^0
F(3) = 1 * 1 /216 * (5/6)^0
F(3) = 1 * 1/216
F(3) = 1/216
Ответ:
But what you gave me I think it is $15.
There are 15 prizes and this are just the ticket not just paying for the item