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mean = (5+ 3+ 7+ 5+ 4+ 3+ 2+ 1+ 3+ 9+ 3+3)/12 =48/12= 4 For median arrange data in increasing order 1,2,3,3,3,3,3,4,5,5,7,9 number of terms = 12 (even) ,so, median = average of 6th and 7 th term =(3+3)/2 = 3
Answer

Arranging in ascending order the series is 1,2,3,3,3,3,3,4,5,5,7,9

So mean = total by no of items = 48/12 = 4

and median is the average of numbers at the middle = (3+3)/2 = 3

Answer

mean = (5+ 3+ 7+ 5+ 4+ 3+ 2+ 1+ 3+ 9+ 3+3)/12 =48/12= 4

The median is the middle number. But there is no "middle" number, because there are an even number of numbers. Because of this, the median of the list will be the mean (that is, the usual average) of the middle two values within the list.

so, median = (3+2)/2 = 5/2

Answer
(D) ,mean = 48/12 = 4 and for median 1,2,3,3,3,3,3,4,5,5,7,9 number of terms = 12 (even) ,so, median = average of 6th and 7 th term =(3+3)/2 = 3

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