find the mode and median of the data
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mean is 15.5......
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arranging the given data in ascending order 12, 13,13,13,13,14,14,15,20. so , n=9. Median = (n+1/2) th. observation. so here 10/2=5 th. observation and that is 13. Hence , median is 13. And mode is also 13 because it has maximum frequency. thanks
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