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Calcuate the mean and themedian for the given data18 , 13, 19, 21,20, 15, 16, 21, 13. |
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Answer» -step explanation:Find the mean of the SET{ 18,13,19,21,20,15,16,21,13 } .There are 9 numbers in the set. Add them all,and then divide by 9 .= (13+13+15+16+18+19+20+21+21)/9= 156/9 = 17.3 So, the mean is 17.3 .Find the median of the set { 18,13,19,21,20,15,16,21,13 } FIRST, ARRANGE the numbers in ascending ORDER.{ 13,13,15,16,18,19,20,21,21 } There are 9 number in the set, and they are arranged in ascending order.The middle number (the 5th one in the LIST ) is 18.So, the median is 18. |
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