3 years ago

How do i solve this problem

1 answer:

6 0

The sum of the interior angles of a quadrilateral -(4 sided shape)
its 360 degrees

add up all the angles, set it equal to 360 degrees, solve for x

any questions

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g At a certain gas station, 30% of all customers use the restroom. What is the probability that, out of the next 10 customers, (

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Answer:

$P(x=4) = 0.200$

Step-by-step explanation:

Given

$n=10$ --- selected customers

$x = 4$ --- those that are expected to use the restroom

$p =30\% = 0.30$ --- proportion that uses the restroom

Required

$P(x = 4)$

The question illustrates binomial probability and the formula is:

$P(x) = ^nC_x * p^x * (1 - p)^{n - x}$

So, we have:

$P(x=4) = ^{10}C_4 * (0.30)^4 * (1 - 0.30)^{10 - 4}$

$P(x=4) = ^{10}C_4 * (0.30)^4 * (0.70)^6$

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3 years ago

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tensa zangetsu [6.8K]

Answer:

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Step-by-step explanation:

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