Mathematics, 20.02.2020 03:57 woahthatstay

Which of the following correlation coefficients represents the strongest relationship between two factors? A. –.15 B. –.80 C. +.38 D. +.03

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Answer from: daniel195

The correlation coefficient with the strongest relationship is B. -0.80

The correlation coefficient shows how strong the relationship between two variables is and goes from 0 to 1.

the closer the coefficient is to zero, the weaker the relationshipthe closer the coefficient is to 1, the stronger the relationship

The coefficient can either be a positive or a negative:

if it is positive, the variables have a direct relationship if it is negative, the relationship is an inverse one.

The strongest relationship here is therefore -0.80 as it is the closest to 1 out of all the options.

It shows that the relationship between the two variables is strongly inverse.

For more information, look at link.

Answer from: yasarhan2

The strongest relation between the two factors is B.) -0.8

Step-by-step explanation:

The correlation coefficient typically varies from -1 to 1.

The value of -1 for the correlation coefficient denotes that the two variables are have a very strong negative correlation.

The value of +1 for the correlation coefficient denotes that the two variables are have a very strong negative correlation.

Therefore among the four options given of -0.15, -0.8, 0.38, 0.03 the strongest relation between two factors is given by -0.8 but as the '-' sign indicates the two factors are negatively correlated.

Negative correlation means that if one variable is high the other would be low.

Positive correlation means that if one variable is high then the other variable is also high and if one variable is low then the other is also low.

Answer from: Quest

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

Answer from: Quest

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that runner b is moving at a slower rate."

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