Which of the following shows no correlation between the independent and dependent variables?

Mathematics

2 answers:

GarryVolchara [31]2 years ago

4 0

For the scatter plot, if the scatter is too high and we are not able to draw the line of best fit, we say the plot doesn't show any correlation.

In A the scatter plot is rising and it is saturated on a rising line, so it is a positive correlation.

In B, we can draw a line fitting all the dots. Also it is rising. Hence it is a strong positive correlation.

In C, the scatter plot is coming down and we can still draw a line of best fit. So this is a negative correlation.

But in D, the scatter is in a huge area and we cannot draw a line around which it can be saturated.

Hence D shows no correlation.

jeka942 years ago

3 0

D doesn’t show a positive or negative correlation. D is the best answer choice.

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The correct answer is is D) If the group sells 15 prints they will loose $85.

To figure out which statement is true, we have to evaluate the function ,

$p(x)=17x-340$ for all the values given in options (A)-(D). A negative output represents a loss and a positive output will represent a profit.

In A $p=12$ so $f(12)=17\times 12-340=-136$ . In this case we gather that if they sell 12 prints, they will make a loss of $136. This tells us that option A is wrong.

In B, $p=28$ so $f(28)=17\times 28-340=136$ . In this case we gather that if they sell 28 prints, they make a profit of $136. This tells us that option B is wrong.

In C, $p=35$ so $f(35)=17\times 35-340=225$ . In this case we gather that if they sell 35 prints, they make a profit of $225. This tells us that option C is wrong.

Lastly, $p=15$ so $f(15)=17\times 15-340=-85$ . In this case we gather that if they sell 28 prints, they make a loss of 85 dollars. From this we gather that D is the correct option.