It's going to be 82 (A)i think .
One at 100,18 one at 200,14 one at 150,15 one at 125,20 and one at 225,12
Answer:
The z-distribution should be used for this problem.
Step-by-step explanation:
The population distribution is assumed to be normal. Which distribution to use?
If we have the standard deviation for the sample, we use the t-distribution.
If we use the standard deviation for the population, we use the z-distribution.
There is a known standard deviation of 2.2 minutes.
This means that 2.2 is the population standard deviation, and thus, the z-distribution should be used for this problem.
Answer:
What is the most common month? That is the answer
Step-by-step explanation:
Pretty sure its D. you need to divide 60.5 by 69
