7/8 owns bike
1/8 dont
difference is 6/8
6/8= 72
96 students were surveyed, if you solve that equation^
Answer:
$9.00
Step-by-step explanation:
0.75 times 12 equals 9
Answer:
a) 0.54 = 54% probability that a randomly selected person will feel guilty for either wasting food or leaving lights on when not in a room or both.
b) 0.46 = 46% probability that a randomly selected person will not feel guilty for either of these reasons
Step-by-step explanation:
We use Venn's Equations for probabilities.
I am going to say that:
P(A) is the probability that a randomly selected person will feel guilty about wasting food.
P(B) is the probability that a randomly selected person will feel guilty about leaving lights on when not in a room.
0.12 probability that a randomly selected person will feel guilty for both of these reasons.
This means that ![P(A \cap B) = 0.12](https://tex.z-dn.net/?f=P%28A%20%5Ccap%20B%29%20%3D%200.12)
0.27 probability that a randomly selected person will feel guilty about leaving lights on when not in a room.
This means that ![P(B) = 0.27](https://tex.z-dn.net/?f=P%28B%29%20%3D%200.27)
0.39 probability that a randomly selected person will feel guilty about wasting food
This means that ![P(A) = 0.39](https://tex.z-dn.net/?f=P%28A%29%20%3D%200.39)
a. What is the probability that a randomly selected person will feel guilty for either wasting food or leaving lights on when not in a room or both (to 2 decimals)?
![P(A \cup B) = P(A) + P(B) - P(A \cap B) = 0.39 + 0.27 - 0.12 = 0.54](https://tex.z-dn.net/?f=P%28A%20%5Ccup%20B%29%20%3D%20P%28A%29%20%2B%20P%28B%29%20-%20P%28A%20%5Ccap%20B%29%20%3D%200.39%20%2B%200.27%20-%200.12%20%3D%200.54)
0.54 = 54% probability that a randomly selected person will feel guilty for either wasting food or leaving lights on when not in a room or both.
b. What is the probability that a randomly selected person will not feel guilty for either of these reasons (to 2 decimals)?
![p = 1 - P(A \cup B) = 1 - 0.54 = 0.46](https://tex.z-dn.net/?f=p%20%3D%201%20-%20P%28A%20%5Ccup%20B%29%20%3D%201%20-%200.54%20%3D%200.46)
0.46 = 46% probability that a randomly selected person will not feel guilty for either of these reasons
The area would be 112 feet
The circumference would be 46feet
Answer:
Step-by-step explanation:
Bike 12.7 percent, decreases
Scooter 24 percent, increase
Tennis racket, 82.95
Skis 452.40