Answer:
161
Step-by-step explanation:
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1 answer:
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Answer:
A. the difference of two squares
Step-by-step explanation:
we are given
we can write
so, we can see that
x^2 is square
11^2 is also square
so,
It means that
two squares are subtracted
so, it is difference of two squares
so,
A. the difference of two squares
Answer:
(a) Hypergeometric distribution
(b) 0.785384...
Step-by-step explanation:
(a) looking at the question, we see that , suppose Evans studied s key terms, this implies that he has not studied 100 - s key terms. Suppose
if X = k, then k out of the s key terms he had studied appeared. But 10 - k out of 100 - s key terms he hasn't studied appeared. Thus X is an Hypergeometric distribution, X~HGeom(s, 100 - s, 10) with PMF: