<span>Because sample means were being tested, the bell curve is used to calculate the z-score</span>
Answer:
4×5
Step-by-step explanation:
Four is being added five times by itself, so it is similar to being multiplied 5 times. I hope this helps!
I think is Y=5x+20
Hope you get it right!
:D
Answer:
Polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).