Answer:
The probability is 0.33696
Step-by-step explanation:
The probability that the outcome will be heads x times is calculated using the following equation:
![P(x) = nCx*p^{x} *(1-p)^{n-x}](https://tex.z-dn.net/?f=P%28x%29%20%3D%20nCx%2Ap%5E%7Bx%7D%20%2A%281-p%29%5E%7Bn-x%7D)
nCx is calculated as:
![nCx=\frac{n!}{x!(n-x)!}](https://tex.z-dn.net/?f=nCx%3D%5Cfrac%7Bn%21%7D%7Bx%21%28n-x%29%21%7D)
This apply for variables that follows a binomial distribution. In which we have n independent and identical events with two possibles results: success and fail with a probability p and 1-p respectively.
So, In this case, n is equal to 5, and p is equal to 0.6 because we are going to call success the event in which the outcome of the coin is head.
Then, the probability that the outcome will be heads at least 4 times is calculated as:
P = P(4) + P(5)
Where P(4) is:
![P(4) = 5C4*0.6^{4} *(1-0.6)^{5-4}](https://tex.z-dn.net/?f=P%284%29%20%3D%205C4%2A0.6%5E%7B4%7D%20%2A%281-0.6%29%5E%7B5-4%7D)
P(4)=0.2592
And P(5) is:
![P(5) = 5C5*0.6^{5} *(1-0.6)^{5-5}](https://tex.z-dn.net/?f=P%285%29%20%3D%205C5%2A0.6%5E%7B5%7D%20%2A%281-0.6%29%5E%7B5-5%7D)
P(4)=0.07776
Finally, the probability is:
P = 0.2592 + 0.07776
P = 0.33696
Answer:
Hey!
V = 1906.624 cm^3
SA= 922.56 cm^2
Step-by-step explanation:
The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube.
Volume of a cube = side times side times side.
Answer:
C is the answer.
Step-by-step explanation:
the US capital account was in surplus and Japanese current account
The answer will be 8.555555555555555556 (it's a repeating decimal)