What do you need help with maybe i can help.
Let X be the number of boys in n selected births. Let p be the probability of getting baby boy on selected birth.
Here n=10. Also the male and female births are equally likely it means chance of baby boy or girl is 1/2
P(Boy) = P(girl) =0.5
p =0.5
From given information we have n =10 fixed number of trials, p is probability of success which is constant for each trial . And each trial is independent of each other.
So X follows Binomial distribution with n=10 and p=0.5
The probability function of Binomial distribution for k number of success, x=k is given as
P(X=k) = 
We have to find probability of getting 8 boys in n=10 births
P(X=8) = 
= 45 * 0.0039 * 0.25
P(X = 8) = 0.0438
The probability of getting exactly 8 boys in selected 10 births is 0.044
Answer:
Each person would have to contribute to contribute $385 to pay a 1.5 deficit.
Step-by-step explanation:
To determine:
How much would each person have to contribute to pay a 1.5 deficit if United States facing a budget deficit of 1.5 billion and 3.9 million population?
Fetching Information and Solution Steps:
- United States facing a budget deficit of 1.5 billion
- Population = 3.9 million
We have to determine how much would each person have to contribute to pay a 1.5 deficit.
Just dividing 1500 millions (1.5 billion) by 3.9 million as:
which is rounded to $385.
Therefore, each person would have to contribute to contribute $385 to pay a 1.5 deficit.
Keywords: deficit
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Answer:
7161 km³
Step-by-step explanation:
28²+b²=32.5²
784+b²=1056.25
b²=1056.25-784
b²=272.25
b=√272.25
b=16.5
1/2x28x16.5x31=7161
So if the area of a square is 320 square meters, then because all four sides are equal, you would end up with the equation

which simplifies to