The mean of the answer is 20.5 because you add all of the number together and divide by 6 because there's 6 numbers.
I'm sorry, but I don't know how to do the standard deviation...
Hope this helped!
The answer to your question is 7.59 so shes right
Answer:
It takes Mike 15 more minutes to vacuum while it takes Debbie 15 more minutes to wash dishes
Step-by-step explanation:
Explain question properly pls.