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Sagot :
The summary of the given data is are as follows :-
Minimum: 11
Lower quartile:11
Median:24
Upper quartile:34
Maximum:45
Interquartile range:23
Given :- 9, 11, 11, 16, 16, 24, 28, 30, 34, 42, 45
Minimum = The smallest number of data
Thus Minimum = 11
Maximum = The largest number of data
Thus Maximum = 45
Median = The middle number of the data if data consists of odd number of elements
Thus Median = 45
Lower quartile = The median of the lower half of data
Thus Lower quartile = 11
Upper quartile = The median of the upper half of data
Thus Upper Quartile = 34
Interquartile range = The difference of upper and lower quartiles,
Thus Interquartile range = 34 -11 = 23
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