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Neporo4naja [7]
3 years ago
9

In a study of 30 high school students, researchers found a high correlation, 0.93, between amount of exercise and weight lost. W

hich of the following statements is TRUE? The researchers proved that exercise causes weight loss, but only for high school students. There is a strong positive linear association between weight loss and exercise, but the researchers have not proven causation. The researchers proved that exercise causes weight loss. 93% of the high school students studied lost weight.
Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0

Answer:

Option A is true

The researchers proved that exercise causes weight loss only for high school students.

Step-by-step explanation:

We are told that the researchers found a high correlation, 0.93, between amount of exercise and weight lost.

Now, looking at each of the options;

- A is True because due to the high correlation, the research proves that exercise causes weight loss but only for high school students.

- B is not true because we are told the correlation is very high at 0.93. Thus, it is untrue that there is no proven causation.

-C is not true because there's no where that the researchers have completely proved that exercise causes weight loss generally. It is only peculiar to the high school students studied.

-D is not true because the 93% is just a correlation and not a percentage of those who lost weight

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Question 1: Option B: y=\frac{1}{3}x -2

Question 2: Option D: y+1=3 (x+1)

Solution:

Question 1:

The point on the given line are (2, 4) and (4, –2).

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$m=\frac{-2-4}{4-2}

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Slope -intercept form using point slope formula,

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Option B is the correct answer.

Question 2:

The point on the given line are (0, –3) and (2, 3).

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Answer:

Step-by-step explanation:

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