I believe this problem has 3 questions:
a. Explain why the three conditions are satisfied for X to have
the binomial distribution.
b. Identify n and p for the binomial distribution.
c. Find the probability that the family has two girls and
two boys.
Answers:
a. First because there are only 2 possible outcomes for
each birth: male or female. Hence a binomial distribution. <span>
Second, because the probability of giving out a girl is
constant: 0.49 for each birth.
Third, the probability of a giving out a girl does not depend
on whether or not there is already a boy or a girl in the family. </span>
b. The n is the total number of children, so n = 4
While the p is the success of being a girls, so P = 0.49
c. We use the binomial probability equation:
P (X) = nCx * p^x * q^(n-x)
<span>P(X=2) = 4!/(2!2!) * 0.49^2 * 0.51^2 = 0.3747</span>
Answer:
392 is the correct answer
thank you
It should be 31.41 bc the equation is 2•pi•radius
Fatima's claim that she has 0.413 kilogram of rose petals left is wrong
<h3>How to determine the amount of rose petals left?</h3>
The given parameters are:
- Amount purchased = 0.454 kg and 0.056 kg
- Used amounts = 0.02kg and 0.095 kg
The amount left is the difference between the amount purchased and the amount used.
So, we have:
Remaining = 0.454 + 0.056 - 0.02 - 0.095
Evaluate
Remaining = 0.395
This means that the remaining amount is 0.395kg, not 0.413 kg
Hence, Fatima's claim that she has 0.413 kilogram of rose petals left is wrong
Read more about sum and difference at:
brainly.com/question/2560921
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