Answer is 12. 12 is a common denominator meaning all the answer devide with 12 without leaving remainders.
What do you mean by saying below?
Answer:
3.42
Step-by-step explanation:
41/12 is 3.42
A3=2.6
a4=?
a5=-.4
note that
-2d=-.4-2.6
-2d=-3
-d=-3/2
d=1.5
thus the 4th term is 2.6-1.5=1.1 done
Yes, I would say the answer is Small Sample.
In order to make an accurate study, you would want to have more than 3 samples. I would say at least 500-1000 depending on what the subject is about and where it takes place.
Let me know if this helps :) Have a nice day!