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tensa zangetsu [6.8K]
3 years ago
13

The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement: Po

or health is caused by not exercising. Is this a reasonable conclusion? Yes; everyone who doesn't exercise is by definition unhealthy Yes; the correlation coefficient is above 0.5, so that implies causation No; the data doesn't suggest a causation, and many people are healthy who don't exercise No; poor health and not exercising are completely unrelated
Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
7 0

Answer:

Base on the statement ‘Poor health is caused by not exercising’, there is a greater chance of having poor health without exercising. It is also said that the correlation between poor health and not exercising a group people is 67%.  


Step-by-step explanation:


wolverine [178]3 years ago
3 0

Answer with explanation:

⇒Correlation coefficient for poor health and not exercising in a group of people = 0.67(r)

⇒ -1 ≤ r ( Correlation coefficient) ≤ 1

⇒If the value of , r < 0.8 or r > -0.8 , are not considered Significant.

⇒So, there is not strong correlation between people who do not exercise and their health.

The Statement we have to analyze is:→

                           Poor health is caused by not exercising.

Option A: Yes; everyone who doesn't exercise is by definition unhealthy.

⇒Keep in mind:→ Simple Walk is also a Exercise.

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Answer:

Option D.

Step-by-step explanation:

Minimize the objective function P = 5x + 8y for the given constraints.

x\geq 0,y\geq 0

2x+3y\geq 15

3x+2y\geq 15

The related equations of above inequalities are

2x+3y=15

3x+2y=15

For 2x+3y=15,

x     y

0     5

7.5   0  

Plot (0,5) and (7.5,0) and join them by straight line.

For 3x+2y=15,

x     y

0     7.5

5      0  

Plot (0,7.5) and (5,0) and join them by straight line.

Check the inequalities for (0,0).

2(0)+3(0)\geq 15\Rightarrow 0\geq 15 False

3(0)+2(0)\geq 15\Rightarrow 0\geq 15 False

It means both lines are solid lines and shaded region for each lies opposite side of (0,0).

From the below graph it is clear that the vertices of feasible region are (0,7.5), (3,3), (7.5,0).

Point       P = 5x + 8y

(0,7.5)     P=5(0)+8(7.5)=60

(3,3)     P=5(3)+8(3)=15+24=39

(7.5,0)     P=5(7.5)+8(0)=37.5 (Minimum)

So, minimum value is 37.5.

Therefore, the correct option is D.

3 0
3 years ago
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