Statıstıcs I Deneme Sınavı Sorusu #859476
Retrieved from https://ourworldindata.org/quality-of-education
The following plot represents the relation between the PISA reading scores and the United Nations' Human Development Index (HDI) for a select group of countries.
According to the scatterplot above and considering straight line that indicates relationship, which one of the following is true?
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The straight line tends to have positive slope |
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The straight line tends to have negative slope |
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No relationship can be claimed between two sets of data |
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Straight line to indicate the negative correlation between two sets of data. |
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The is not any outlier data for statistical analysis. |
Scatter plot can also be used with a straight line to indicate the correlation between two sets of data. A regression line is added to scatter plot will show a very good indication about the direction of the relationship between two variables. The values of both variables are increasing, hence there is a positive relationship between these two variables. Thus, the straight line tends to have positive slope.
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