Explanation:
cậu nên hỏi trên mấy web như Qanda, Miny thì hơn tại app này ít người Việt lắm cậu ạ
Answer:
a) Negative correlation
Explanation:
Negative correlation is a term which basically explains a relationship between to variables in which increase in one variable causes a decrease in the other variable and vice versa. As in the given scenario, the more frequently the teeths are brushed ( variable is increasing ) the less likely is the chance to develop cavities (variable is decreasing)
Hence a)negative correlation is the right answer.
Answer:
C
Explanation:
The reason it can not be A, is because high metabolism is when your body burns off calories and such faster than average. Making it easier to maintain and lose weight. So with that explanation D is also out of the question. Now B is kinda on the ball here. metabolism does change with age. But it tends to be it slows as you grow up. This can be seen when you watch a school ager eat. for example my 7 year old brother can eat 6 tacos in one sitting. But he still only weighs 54 pounds. That is due to his high metabolism.
B. Customers with the last names beginning with S, The answer is in the question itself. It's the company surveying the customers with the last name beginning with S
