The scores of eleven pupils are $5,7,8,10,11,12,14,16,17,19,20$. Find the median, lower quartile a

Question

The scores of eleven pupils are $5,7,8,10,11,12,14,16,17,19,20$. Find the median, lower quartile and upper quartile.[3] Draw a box-and-whisker plot on the scale provided below.[2]

Accepted Answer

(a) Median $12$, lower quartile $8$, upper quartile $17$ (b) Box plot with summary $5,8,12,17,20$

Constructing a box plot

Constructing a box plot

Solution:

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