A group of 5 friends decides to share the cost of a party together. If the party costs $1,100, how much does each friend pay?

Mathematics

1 answer:

seraphim [82]3 years ago

7 0

Answer:

1,100 dollars divided by 5 friends is 220 dollars so each friend would have to pay 220 dollars

Step-by-step explanation:

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Answer:

$P(X=7)$

And using the probability mass function we got:

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Step-by-step explanation:

Let X the random variable of interest, on this case we now that:

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The probability mass function for the Binomial distribution is given as:

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Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find the following probability:

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And using the probability mass function we got:

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(02.0

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15.25 percent of 900 will be 137.25 just look it up on google

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