Suppose you draw 8 cards out of a well-shuffled deck of 52 cards, and one-by-one with re-placement, consider X as the number of
1 answer:
Answer:
It is a Binomial experiment with n = 8 and p = 0.25
Step-by-step explanation:
It is given that we draw 8 cards out of the well shuffled deck of 52 cards one by one replacement.
Given :
P (getting a spade) =
= 0.25
As in the question, we are sampling with the replacement, so the probability of getting a spade in each draw remains the same and the all the draws are independent.
Therefore it is a Binomial experiment with n = 8 and P = 0.25
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Step-by-step explanation:
let's simply do the multiplications and then compare with the original.
(x-m)² + n
right ?
or is it
let's go for the first.
x² - 2mx + m² + n = x² - 3x
-2mx + m² + n = -3x
fun there we see two things :
-2m = -3
m = 3/2
and
m² + n = 0
(3/2)² = -n
9/4 = -n
n = -9/4
so our transformed expression looks like
(x - 3/2)² - 9/4