Summarising Data
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The duration, in minutes, of the last few movies seen by Philip are as below
\[144, 96, 104, 85, 121, 88, 110, 90, 116, 155, 102\]
a) Find the first quartile.
b) Find the third quartile.
c) Find the interquartile range as a percentage of the range, correct to 1 decimal.
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