Answer:
Step-by-step explanation:
12
I think so
Answer:
.9 km in 5 minutes and 3.6 km in 20 min
Step-by-step explanation:
Multiply the time to the distance to fine total distance then convert to the wanted unit!
The two number would be 14 and 15.
This would be because 14x15=210 (the product) and 210/2=105 (half the product)
Number 1 I think pretty sure
Answer:
The correct answer is
(B) 0.60
Step-by-step explanation:
This probability distribution means that we have these following probabilities:
![P(X = 0) = 0.10](https://tex.z-dn.net/?f=P%28X%20%3D%200%29%20%3D%200.10)
![P(X = 1) = 0.30](https://tex.z-dn.net/?f=P%28X%20%3D%201%29%20%3D%200.30)
![P(X = 2) = 0.30](https://tex.z-dn.net/?f=P%28X%20%3D%202%29%20%3D%200.30)
![P(X = 3) = 0.20](https://tex.z-dn.net/?f=P%28X%20%3D%203%29%20%3D%200.20)
![P(X = 4) = 0.10](https://tex.z-dn.net/?f=P%28X%20%3D%204%29%20%3D%200.10)
What is the probability of having at least 2 successful calls in one day?
This is the following probability.
![P = P(X = 2) + P(X = 3) + P(X = 4)](https://tex.z-dn.net/?f=P%20%3D%20P%28X%20%3D%202%29%20%2B%20P%28X%20%3D%203%29%20%2B%20P%28X%20%3D%204%29)
![P = 0.30 + 0.20 + 0.10](https://tex.z-dn.net/?f=P%20%3D%200.30%20%2B%200.20%20%2B%200.10)
![P = 0.60](https://tex.z-dn.net/?f=P%20%3D%200.60)
The correct answer is
(B) 0.60