The table gives some information about the heights of 60 boys
Least height
Greatest height
Lower quartile
Upper quartile
Median
142 cm
181 cm
149 cm
160 cm
156 cm
יייייי
a) Complete the boxplot for this information.
130
140
170
180
150 160
height (cm)

b) Work out an estimate for the number of these boys with a height between
149 cm and 181 cm.
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