Since you didn't give an amount of time, we can't give an exact value. However, I can help you with the steps so you can get the correct answer.
First, you need to find the correct z-score. Then, use a standard normal distribution table to find the percent.
Let the time that you are looking for equal X.
The formula for your z-score is:
(x - 8.7) / 2.1 = z-score
I think it A... But if it not sorry I didn’t help... hope this is the answer I am sure it is...
I'll try! What's the link?
Answer:
18
Step-by-step explanation:
a = 2
b = 3
3x(2)x(3)=18
Car : (19 + 28 + 17 + 39 + 22 + 44 + 56) / 7 = 225/7 = 32.14
bus : (32 + 26 + 25 + 40 + 39 + 49 + 22)/7 = 233/7 = 33.29
bus has a higher commuter average