The number is near zero, so it is classified as "low." Its sign is negative, so it is a ...
-low negative correlation
Take the root of both sides, and then solve.
c = sqrt a^2 + b^2, - sqrt a^2 + b^2.
The number of cans recycled is the independent variable because it affects the amount of money earned.
Answer:
80 questions.
Step-by-step explanation:
If 20% = 16 Q,
then 100 ÷ 20 = 5
Therefore, 5 x 16 = 80 questions on the test.