Page 1 of 19 Question 1 The following is a set of data from a sample of \( \mathrm{n}=5 \). \[ \begin{array}{l}11, \quad-2, \quad-6, \quad 11, \quad 10 \\ \text { What is the maximum: } \\ \text { Add your answer } \\ \text { Integer, decimal, or E notation allowed }\end{array} \]

158. Given \( \mathrm{b}=1.89, \bar{x}=5.75 \) and \( \bar{y}=11 \). Calculate \( a \). (a) 5.75 (c) 0.0782

The centre of the first set of the sets : \( 7-, 13-19,25 \) - is ........... \( \begin{array}{llll}\text { (a) } 6 & \text { (b) } 7 & \text { (c) } 10 & \text { (d) } 13\end{array} \)

\( \left. \begin{array} { l } { \hat { \beta } _ { 2 } = \frac { ( \sum y _ { i } x _ { 2 i } ) ( \sum x _ { 3 i } ^ { 2 } ) - ( \sum y _ { i } x _ { 3 i } ) ( \sum x _ { 2 i } x _ { 3 i } ) } { \sum x _ { 2 i } ^ { 2 } \sum x _ { 3 i } ^ { 2 } - ( \sum x _ { 2 i } x _ { 3 i } ) ^ { 2 } } } \\ { \hat { \beta } _ { 3 } = \frac { ( \sum y _ { i } x _ { 3 i } ) ( \sum x _ { 2 i } ^ { 2 } ) - ( \sum y _ { i } x _ { 2 i } ) ( \sum x _ { 2 i } x _ { 3 i } ) } { \sum x _ { 2 i } ^ { 2 } \sum x _ { 3 i } ^ { 2 } - ( \sum x _ { 2 i } x _ { 3 i } ) ^ { 2 } } } \end{array} \right. \)

What is a scatter plot?

b] Calculate the arithmetic mean and the standard deviation of the values \( 12,13,16,18,21 \)