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The mean will increase from 14 to 20. The median will increase from 12 to 15.
The mean is 12.4
15
since there are zeros the total amount of data given is different. for example: 14+16=30 30/2= 15 with zeros: 14+16+0=30 30/3=10
(15 + 19)/2 = 17
11
The mean will increase from 14 to 20. The median will increase from 12 to 15.
The mean is 12.4
a data set in this case can be any collection of numbers you choose. Say we define Set A = {1,2,3,4,5} The Median for Set A is 3. The mean is the sum of the numbers divided by 5 in this case. 15/5 = 3 is the mean of Set A.
15
9
since there are zeros the total amount of data given is different. for example: 14+16=30 30/2= 15 with zeros: 14+16+0=30 30/3=10
9 15 15 15 16 (five data) Range = 16 - 9 = 7 Mean = (9 + 15 + 15 + 15 + 16)/5 = 70/5 = 14 So we have: (9 - 14)2 = (-5)2 = 25 (the square of the difference of data value and the mean value) (15 - 14)2 = 12 = 1, 3(1) = 3 (16 - 14)2 = 22 = 4, the sum is 32 The standard deviation = √(32/5) ≈ 2.5
6.
(15 + 19)/2 = 17
Mean = (12+14+25+10+25+15+11)/7 = 112/7 = 16
Whatever you like. The median value for each of the following three sets is 10. For the set {1, 9, 11, 12}. the mean is 8.25, smaller than the median. For the set {1, 9, 15, 15}. the mean is 10, the same as the median. For the set {1, 9, 15, 16}. the mean is 10.25, larger than the median.