Answer:
(a)
The probability that you stop at the fifth flip would be

(b)
The expected numbers of flips needed would be

Therefore, suppose that
, then the expected number of flips needed would be 1/0.5 = 2.
Step-by-step explanation:
(a)
Case 1
Imagine that you throw your coin and you get only heads, then you would stop when you get the first tail. So the probability that you stop at the fifth flip would be

Case 2
Imagine that you throw your coin and you get only tails, then you would stop when you get the first head. So the probability that you stop at the fifth flip would be

Therefore the probability that you stop at the fifth flip would be

(b)
The expected numbers of flips needed would be

Therefore, suppose that
, then the expected number of flips needed would be 1/0.5 = 2.
Answer:
12600
Step-by-step explanation:
5% of 12000 is 600 so just add them
if four points are collinear, that are also coplanar: This is true
If points lie in the same line. they must lie in the same plane
Answer:
C
Step-by-step explanation:
7.5/1.5 = 12/t
I got S > 2
Because you would multiply both sides by two then subtract by twelve
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