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Need help with this question Based on the above graph would you say that the dat

ID: 3268904 • Letter: N

Question

Need help with this question

Based on the above graph would you say that the data has a linear relationship? If you believe that there is a linear relationship would it be positive or negative? Explain your reasoning. Would you assume that this is a strong relationship between these variables? Why or why not? Would you assume that there are any outliers in this data set? If so name one data point that you think might be considered an outlier for the data. Would you expect the correlation coefficient to be positive or negative? Why? On the basis of this graph, might you be able to predict the Avg. Final Grade for a student with 7 absences? Why or why not?

Explanation / Answer

(A) yes , there is linear relationship

as all the points looking near to a line

(B) negative, as more the grade less the absence

(C)strong relationship, as points on almost left upper corner to right lower corner

(D) yes there is an outlier , the data point (12,85) is an outlier

(E) negatinve, as absence decreases the grade increases

(F) it can not be predicted from this scatter plot graph, it gives just an idea about the linear correlation and outliers if any not any quantitative measure e.g. prediction of average