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1 of 8 0-day streak

Compute the least squares line from summary statistics

Question 1 of 8

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Treat \(x\) as the explanatory variable and \(y\) as the response variable

Summary valueGiven
\(r\)0.7
\(\bar{x}\)16.2
\(s_x\)5.0
\(\bar{y}\)39.3
\(s_y\)7.8
(a)1 mark

Determine the slope coefficient b to 2 decimal places

Format: 2 d.p.
(b)1 mark

Determine a to 2 decimal places before rounding the final equation

Format: 2 d.p.
(c)1 mark

Choose the correct least squares equation for predicting y from x