Answer (b): There is a strong positive correlation between time studied and test scores.
Reason:
(1) it is upward, so it is positive.
(2) They are closely packed, so there is a strong correlation.
Answer:
if you want to factorise it answer will be : (x+y)^2 - 4^2
and if you have to expand it anwer will be x^2 + y^2 + 2xy -16
41/100
999/1000
i think you cannot simplify them
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Answer:
-4/9
Step-by-step explanation:
flip -3/5
4×5 / 15×-3
20/-45
÷5 ÷5
-4/9
