Answer:5 minutes
Step-by-step explanation:
Answer:
10.82
Step-by-step explanation:
Umm im gonna guess on this one because im not good at math lol
, 3.58?
Answer:
Variance = 4.68
Step-by-step explanation:
The formula for the variance is:

Where:

The mean can be calculated as each value multiplied by its probability


Replacing the mean and the summatory of X:
