In Order for Applicants to Work for the Foreign-Service Department

question 53

Multiple Choice

In order for applicants to work for the foreign-service department, they must take a test in the language of the country where they plan to work. The data below shows the relationship between the number of years that
Applicants have studied a particular language and the grades they received on the proficiency exam. Calculate
The correlation coefficient, r. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | } \text { Number of years, } \mathrm { x } & 5 & 6 & 6 & 7 & 5 & 8 & 4 & 9 & 5 \\\hline \text { Grades on test, } \mathrm { y } & 52 & 59 & 66 & 73 & 64 & 81 & 49 & 84 & 63\end{array}$$

• A)0.934
• B)0.911
• C)0.891
• D)0.902

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