Answer:
The scatter diagram that contains the correlation coefficient closest to r = 1 is the first one shown in the attached images.
Step-by-step explanation:
The correlation coefficient "r" measures how much two variables x and y are related. When the variables are highly related, the value of r is closer to one and the points contained in the scatter diagrams are assimilated more and more to a line. When the value of r is positive the relation is crescent and therefore the slope of the line drawn by the points in the diagram has a positive slope
Therefore, to answer this question, one must search among the attached images for the dispersion diagram in which the points resemble a straight line with a positive slope.
The scatter diagram that meets the requirements mentioned is the first one that appears in the attached images
Answer:
Step-by-step explanation:
4/10 can be written in several different ways:
2/5, 40/100 (same as 0.4).
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Answer:
x=-3
Step-by-step explanation:
-7-4(2x-1)=21
-7-8x+4=21
-7+4-8x=21
-3-8x=21
8x=-3-21
8x=-24
x=-24/8
x=-3