It can't be A. since if you only look at managers, you are missing all the sales executives.
It may be C. this option is more random but doesn't guarantee that you will represent both groups of employee's. Also, each time you would conduct the survey, you will receive the exact same results since it is the same people.
It isn't D. for the exact same reason as A. but you're missing managers now.
Therefore the answer is B. Some managers and some sales executives selected at random. This way you get a sample from both categories, and within those groups, it is randomly selected.
I hope this helps!
Answer:
Your total income with perfect attendance would be $998.40
Step-by-step explanation:
First you need to figure out how much the 4% bonus is by multiplying 4% by $960.
But first you need to convert 4% to a decimal so it becomes 0.04
Then multiply it by $960 which would get you $38.40
So the 4% bonus is $38.40 but you need to know how much your total income is with the bonus.
So you need to add $38.40 and $960 which will get you $998.40
The total income with perfect attendance would be $998.40
Let's turn 3 hours and 3 minutes into minutes.
One hour=60×3=180+3=183
So, there's 183 minutes in 3 hours and 3 minutes. We need to divide 26.2 miles by 183.
26.2÷183≈ 0.143
So, Sally ran 0.143 miles every minute.