The best estimate for the correlation coefficient of the data is: C. 0.5.
What is Correlation?
Correlation can be defined as a quantitative measure that describes the relationship between variables. Correlation coefficient, r, is a number that ranges from -1 to 1.
The farther the correlation coefficient from 0, the stronger the relationship between two variables, and also, the more closer the data points are on a plotted graph. Also, a negative correlation value will show a trendline on a plot that slopes downward, while positive correlation value will show a trendline that slopes upwards.
In the graph given, the points are moderately closer to each other. Also, the trendline slopes upward, which suggest a positive correlation.
Since the points are moderately spaced from each other, the correlation coefficient would positive and be approximately 0.5.
Therefore, the best estimate for the correlation coefficient of the data is: C. 0.5.
Learn more about the correlation coefficient on:
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