The area of D is given by:

The average value of f over D is given by:
Answer: a) 0.2222, b) 0.3292, c) 0.1111
Step-by-step explanation:
Since we have given that
Let the probability of getting head be p.
Since, its head is twice as likely to occur as its tail.

a)If the coin is flipped 3 times, what is the probability of getting exactly 1 head?
So, here, n = 3


Now,

b)If the coin is flipped 5 times, what is the probability of getting exactly 2 tails?
2 tails means 3 heads.
So, it becomes,

c)If the coin is flipped 4 times, what is the probability of getting at least 3 tails?

Hence, a) 0.2222, b) 0.3292, c) 0.1111
8736
x 6.
6x6....6x3.....6x7.....6x8
it would equal=52,416. hope this helped...
There is no solution so C.
I think 12,000 is the answer, 50,000 • 0.12 (12% converted to a decimal)