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Andy was given data to draw 3 scatter diagrams.
He also decided to draw a line of best fit on each one.
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5 8 8 8 8 8 83
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30 X
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0 10 20 30 40 50 60 70 80 90 100
Diagram B
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Diagram A
a) What type of correlation is shown in diagram A?
Diagram C
b) Which diagram shows the strongest correlation?
c) Which line of best fit should not have been drawn?
Give a reason for your answer.

Respuesta :

Answer:

A) Negative Correlation. B) C. C) B

Step-by-step explanation:

A:

As the line of best fit is travelling downwards, it is a negative correlation, if the line of best fit is travelling upwards, it is a positive correlation, if the points on the graph are all over the place, there is no correlation.

B:

As there are only three types of correlation, the strongest is always the positive.

C:

The answer is B because there is no correlation and that means that there shouldn't be a line of best fit.

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