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 The table shows the amount each film earned in Sales (Box Office Sales) and the Budget (the total amount spent making the film).

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Budget (£ million)

\n
\n

152

\n
\n

107

\n
\n

180

\n
\n

118

\n
\n

58

\n
\n

62

\n
\n

144

\n
\n

29

\n
\n

Sales (£ million)

\n
\n

280

\n
\n

294

\n
\n

293

\n
\n

168

\n
\n

92

\n
\n

163

\n
\n

219

\n
\n

66

\n
\n

 Calculate the following to 3 decimal places.

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 Calculate  Sxx 

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Syy

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Sxy

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 Calculate the Product Moment Correlation Coefficient  (r) 

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Coefficient of determination r2

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 What does the value of the correlation coefficient (r) calculated in part d) tell you about the relationship between the two variables?

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 Which one is the correct regression line of Sales on Budget 

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Predict the sales for an Action film with a budget of £120 million. Write your answer in millions. 

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