Complete the following table of values for the height and weight of seven students.

\({\text{Mode}} = 171\)     (A1)

\({\text{Median }}148{\text{, }}151{\text{, }}158{\text{, }}163{\text{, }}171{\text{, }}171{\text{, }}184\)

\( = 163\)     (A1)

\({\text{Mean}} = 64.7\)     (A1)

\({\text{Standard deviation}} = 13.3\)     (A1)     (C4)

Note: If both mean and standard deviation given to 2 significant figures
\({\text{Mean }}65\), (A0)(AP)
\({\text{Standard deviation }}13\) (A1)(ft) ((AP) already deducted).

[4 marks]

Part (a) was well answered, albeit with some choosing the wrong value (\(14.3\)) for the standard deviation. The majority of candidates had the correct stem and leaf plot, though many lost a mark through not including a key and a few used a single digit in the stem. Some tried to draw two stem and leaf plots for the heights and weights in part (a) without realizing that part (b) had the ages written above.