If X is a binomial random variable with parameters n and p, what is the expected value of X?

Mathematics

1 answer:

Daniel [21]3 years ago

8 0

Answer:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

$X \sim Bin (n,p)$

And by properties of this distribution the expected value for this case is:

$E(X)= np$

And the variance :

$Var(X)= np(1-p)$

Step-by-step explanation:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

$X \sim Bin (n,p)$

And by properties of this the expected value for this case is:

$E(X)= np$

And the variance :

$Var(X)= np(1-p)$

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Simplify: (3 × 22) ÷ 6 + [28 – (4)2] Question 17 options: A) 32 B) 23 C) 46 D) 55

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Answer:

Step-by-step explanation:

Here the trick is to perform the indicated operations in the correct order. Anything inside parentheses must be done first, followed by any multiplication or division, followed by any addition or subtraction.

Doing the work inside parentheses first:

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(66) ÷ 6 + [28 - 8] => 11 + [20], or 31

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The table on the left is that of a linear function, and the one on the right is that of an exponential function. Can you tell wh

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