Answer:
![P(x=4) = 0.200](https://tex.z-dn.net/?f=P%28x%3D4%29%20%3D%200.200)
Step-by-step explanation:
Given
--- selected customers
--- those that are expected to use the restroom
--- proportion that uses the restroom
Required
![P(x = 4)](https://tex.z-dn.net/?f=P%28x%20%3D%204%29)
The question illustrates binomial probability and the formula is:
![P(x) = ^nC_x * p^x * (1 - p)^{n - x}](https://tex.z-dn.net/?f=P%28x%29%20%3D%20%5EnC_x%20%2A%20p%5Ex%20%2A%20%281%20-%20p%29%5E%7Bn%20-%20x%7D)
So, we have:
![P(x=4) = ^{10}C_4 * (0.30)^4 * (1 - 0.30)^{10 - 4}](https://tex.z-dn.net/?f=P%28x%3D4%29%20%3D%20%5E%7B10%7DC_4%20%2A%20%280.30%29%5E4%20%2A%20%281%20-%200.30%29%5E%7B10%20-%204%7D)
![P(x=4) = ^{10}C_4 * (0.30)^4 * (0.70)^6](https://tex.z-dn.net/?f=P%28x%3D4%29%20%3D%20%5E%7B10%7DC_4%20%2A%20%280.30%29%5E4%20%2A%20%280.70%29%5E6)
![P(x=4) = 210* (0.30)^4 * (0.70)^6](https://tex.z-dn.net/?f=P%28x%3D4%29%20%3D%20210%2A%20%280.30%29%5E4%20%2A%20%280.70%29%5E6)
![P(x=4) = 0.200](https://tex.z-dn.net/?f=P%28x%3D4%29%20%3D%200.200)
Answer:
2 hundredth
Step-by-step explanation:
the number directly after a point is called a tenth and the next a hundredth and so on
pls mark brainliest
Answer:
plane is correct answer
eg:
a sheet of paper
it has no thickness but have surface area
hope it helped you:)
Answer:
m=-4k + 3f -7
Step-by-step explanation:
-5m = 20k - 15f + 35
Divide both sides by -5
![\dfrac{-5m}{-5}= \dfrac{20k-15f+35}{-5}\\\\m= \dfrac{20k}{-5}- \dfrac{15f}{-5}+ \dfrac{35}{-5}\\\\m=-4k+3f-7](https://tex.z-dn.net/?f=%5Cdfrac%7B-5m%7D%7B-5%7D%3D%20%5Cdfrac%7B20k-15f%2B35%7D%7B-5%7D%5C%5C%5C%5Cm%3D%20%5Cdfrac%7B20k%7D%7B-5%7D-%20%5Cdfrac%7B15f%7D%7B-5%7D%2B%20%5Cdfrac%7B35%7D%7B-5%7D%5C%5C%5C%5Cm%3D-4k%2B3f-7)
Answer:
He had $56.
Step-by-step explanation:
$46 + $10 = $56
you can also solve it like this:
x = 46 + 10
x = 56