In Hong Kong, some employers claim that they are willing to offer better starting salaries for those university graduates with a higher GPA. A study on Hong Kong university students was carried out. A simple random sample of 96 students who were admitted to Hong Kong universities between 2010 and 2013 was selected. Final cumulative GPA and starting salary (monthly salary in Hong Kong Dollars) of each participant were collected. A scatterplot of the two variables (gpa = final cumulative GPA; salary = starting salary) is shown below.
In Hong Kong, some employers claim that they are willing to offer better
starting salaries for those university graduates with a higher GPA. A study on Hong Kong university students was carried out. A simple random sample of 96 students who were admitted to Hong Kong universities between 2010 and 2013 was selected. Final cumulative GPA and starting salary (monthly salary in Hong Kong Dollars) of each participant were collected. A scatterplot of the two variables (gpa = final cumulative GPA; salary = starting salary) is shown below.
We know that,
Association means the one variable is related in some way to another variable.
There are three types of correlation are,
1] Positive correlation :
If one variable increases then another variable also increases.
2] Negative correlation :
If one variable increases then another variable decreases and vice versa.
3] No correlation :
There is no relation between the two variables. that is there is a correlation between two variables is zero.
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