The answer can vary depending on how many chairs are in each row.
Answer:
(B) a negative correlation.
Step-by-step explanation:
If students who finish exams early tend to get better grades than students who hold on to exams until the last possible moment implies that if we collect data about time to finish an exam and the associated grade, then, for instance, for two diffent times the corresponding grades and will satisty with high probability. This is a clear example of a negative correlation.
Answer:
D or 1/2
Step-by-step explanation:
If there are 3 envelopes for a car, 5 envelopes for vacation, and 2 envelopes for an electronic, then add 3+5+2=10. But, we are figuring out the vacation envelopes, which there are 5 of those and 5 is half of 10. Therefore, your answer is 1/2.
Answer: 21y^5-28y^4+49y^3
If the remainder isn't necessarily zero, we add C_1y^2+C_2y+C_3, which covers all possible remainders when dividing by a polynomial with leading term in y^3.
Step-by-step explanation:
(3y^2-4y+7)(7y^3) =
21y^5-28y^4+49y^3