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Q: What is median of 20 and 21 and 15?

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16.5 is the median.

In the example provided, the quartiles are: 25% = 16.5 (the median of {15, 16, 17, 18}) 50% = 18.5 (the median of {15, 16, 17, 18, 19, 20, 21, 22}) 75% = 20.5 (the median of (19, 20, 21, 22})

It is 18, the middle number when they are in order.

The numbers are 15 21 21 24 25 26 35.

Order them: 15 16 17 21 21 Find the middle one: 17 That is the median

Mean: 19 and 1/6 Median: 20 There is no mode.

23

The mean is 21 and 1/3 The median is 22 The mode is 24

11 13 15 18 20 20 The median is the middle number when they are in numerical order, so the median is 16.5. It is 16.5 because there is an even number of integers so you find the middle of 15 and 18

Mean = 21.6 Median = 19.5 Mode = 20 and 21 ------------------------------------------------------------------------ If the "2 1" (between 18 and 20 at the end) is supposed to be "21" then Mean = 26 Median = 20 Mode = 20

25.5 is the median.

First 15 composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24 and 25. In order to find median for a set of numbers we have to arrange numbers in order: Since the the first 15 composite numbers are already in order so we need not to rearrange. Terms are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24 and 25. Median is the middle value. Since there are 15 terms then the middle term is the 8th term which in this case is 15. So, the median is 15.

15, 15, 20, 24, 25, 25, 30 Mode: 22 Median: 24

In order, the numbers are 18, 21, 24 and 37. Since there are an even number (4) of them, the median is the average of the middle two. ie median = (21+24)/2 = 22.5

19

21. You put them in numerical order and then find the center one.

The Median is 23.5.

Yes. In the set (10, 15, 20, 20, 25, 30) the mean, median and mode are all 20.

There is no such data set for 7 numbers. With the maximum at 35 and the range 20, the mode (average) will always be more than 21, even with the lowest numbers possible. e.g. 15 15 15 24 24 24 35 sums to 152, which is 5 higher than the necessary 147 (21 x 7) So you need at least 11 numbers such as 15 15 15 15 15 24 24 24 24 25 35, keeping 24 as the median and the average 21 (231/11).

all you do is this example 12 19 20 21 45 before you do it put it in order then cross out side by side like you would cross out 12 and 45 then 19 and 21 then your median would be 20

Mean: 15.5 Median: 16.5 Mode: 20 Range: 15

If you mean: 15 20 29 and 34 then it is 24.5 If you mean: 8 15 20 29 and 34 then it is 20

There is no direct relationship between the range and the median. So knowing that your median is 20 does not automatically give you the range. The median is just the middle value. That does not tell you what the first and last values are, which is what you need to know to find the range. The median of 19, 20 and 21 is 20, and the range is 2. The median of 4, 20 and 79 is also 20, but the range is 75. The median of 8, 16, 17, 23, 50 and 320 is also 20, but the range is 312. So, as you can see, the Median in no way can tell you what the range will be. You need to know what all of the numbers are, or at least the lowest and highest to know the range.

16

One solution is: 15 21 21 24 25 30 35. There are additional solutions.