Out of the 3 points, only ABC are collinear. Hence, only ABC can be chosen. The chances of choosing ABC out of ABCD is 1/4. Hence, the probability is 25%.
In the graph, the constant of proportionality is 40
<h3>Calculating the constant of proportionality</h3>
From the question, we are to determine the constant of proportionality
The constant of proportionality =
From the graph, a point on the line is (1, 40)
That is,
When x = 1 and y = 40
Thus,
The constant of proportionality =
Constant of proportionality = 40
Hence, the constant of proportionality is 40
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The slope is 1/2 because to find a slope on a graph you use Rise/Run. So in this case it rise 1 and goes over 2
Complete question:
Which step comes last when using the divide-center method to find the trend line on a scatterplot?
A Approximate the center of the cluster located on the left side of the line, and repeat for the right side of the line.
B Connect the two centers to produce the trend line.
C Disregard all outliers.
D Draw a vertical line so that each side has the same number of data points.
Answer:
The correct option is B
Step-by-step explanation:
There are three steps to find the trend line on a scatter plot after plotting the dots. These steps are:
STEP ONE:
Draw a vertical line so that each side has the same number of data points.
STEP TWO:
Mark with a special sign, the middle value in each of the two sets obtained in the previous step.
STEP THREE:
Join the two marks mentioned in the point with a straight line, and extend it to the edges of the graph. This line called the trend line and this is the last step.
So the answer is letter B.