Answer:
30 hours
Step-by-step explanation:
We can use ratios to solve
5 hours x hours
-------------- = -------------
3 walls 18 walls
Using cross products
5*18 = 3x
Divide each side by 3
5*18/3 = 3x/3
30 =x
Answer:
![P(x = 5) = 0.2441](https://tex.z-dn.net/?f=P%28x%20%3D%205%29%20%3D%200.2441)
Step-by-step explanation:
Given
--- proportion that have very little confidence
--- sample
Required
Determine the probability that exactly 5 have very little confidence
This question will be solved using binomial probability:
![P(x) = ^nC_xp^x(1-p)^{n-x}](https://tex.z-dn.net/?f=P%28x%29%20%3D%20%5EnC_xp%5Ex%281-p%29%5E%7Bn-x%7D)
In this case: x = 5.
So, we have:
![P(x = 5) = ^{10}C_5*0.48^5(1-0.48)^{10-5}](https://tex.z-dn.net/?f=P%28x%20%3D%205%29%20%3D%20%5E%7B10%7DC_5%2A0.48%5E5%281-0.48%29%5E%7B10-5%7D)
![P(x = 5) = ^{10}C_5*0.48^5*0.52^5](https://tex.z-dn.net/?f=P%28x%20%3D%205%29%20%3D%20%5E%7B10%7DC_5%2A0.48%5E5%2A0.52%5E5)
![P(x = 5) = 252*0.48^5*0.52^5](https://tex.z-dn.net/?f=P%28x%20%3D%205%29%20%3D%20252%2A0.48%5E5%2A0.52%5E5)
![P(x = 5) = 0.2441](https://tex.z-dn.net/?f=P%28x%20%3D%205%29%20%3D%200.2441)
Answer: The correct answer is A: Ethnicity; race.
Step-by-step explanation:
Ethnicity is define refers to a shared culture among members belonging in a specific group who also share a way of life. This reflects in their language, religious believes, clothes, cuisine, music and art.
On the other hand, race is understood as as the physical features that are different between one group and another, which are considered as socially significant.
The answer is 9 for this one
1/10 would be 0.1 dollars