The friends would each have .9
Hope I helped :)
Answer:
Hey there!
1 person can fix 1/3 of the road in 5 hours.
1 person can fix 1/15 of the road in 1 hour.
4 people can fix the road in 15/4, or 3.75 hours.
This is equal to 225 minutes.
Let me know if this helps :)
Answer:
![17^4](https://tex.z-dn.net/?f=17%5E4)
Step-by-step explanation:
Answer:
Colour ---- Probability
Blue ----- 0.2
Red ------- 0.4
Yellow ------ 0.4
Step-by-step explanation:
Given
Colour ---- Probability
Blue ----- 0.2
Red -------
Yellow ------
Required
Complete the table
In probability, all probabilities add up to 1.
i.e.
![P(Blue) + P(Red) + P(Yellow) = 1](https://tex.z-dn.net/?f=P%28Blue%29%20%2B%20P%28Red%29%20%2B%20P%28Yellow%29%20%3D%201)
Substitute 0.2 for P(Blue)
![0.2 + P(Red) + P(Yellow) = 1](https://tex.z-dn.net/?f=0.2%20%2B%20P%28Red%29%20%2B%20P%28Yellow%29%20%3D%201)
![P(Red) + P(Yellow) = 1 - 0.2](https://tex.z-dn.net/?f=P%28Red%29%20%2B%20P%28Yellow%29%20%3D%201%20-%200.2)
![P(Red) + P(Yellow) = 0.8](https://tex.z-dn.net/?f=P%28Red%29%20%2B%20P%28Yellow%29%20%3D%200.8)
From the question, we understand that the frequency of yellow and red balls are the same.
Hence:
![P(Red) = P(Yellow)](https://tex.z-dn.net/?f=P%28Red%29%20%3D%20P%28Yellow%29)
becomes
![P(Red) + P(Red) = 0.8](https://tex.z-dn.net/?f=P%28Red%29%20%2B%20P%28Red%29%20%3D%200.8)
![2P(Red) = 0.8](https://tex.z-dn.net/?f=2P%28Red%29%20%3D%200.8)
Make P(Red) the subject
![P(Red) = 0.4](https://tex.z-dn.net/?f=P%28Red%29%20%3D%200.4)
Recall that:
![P(Red) = P(Yellow)](https://tex.z-dn.net/?f=P%28Red%29%20%3D%20P%28Yellow%29)
Hence,
![P(Yellow) = 0.4](https://tex.z-dn.net/?f=P%28Yellow%29%20%3D%200.4)
So, the complete table is:
Colour ---- Probability
Blue ----- 0.2
Red ------- 0.4
Yellow ------ 0.4