It can somteimes be one of the data values. When there's an odd set of numbers, the median will always be one of the data values. When there's a even set of numbers, the median will sometimes be one of the data values. Even: 2, 3, 4, 5, 6, 7 Now, we need to find the number between 4 and 5, which is 4.5, 4.5 doesn't show up in the data set. 2,3, 5, 5, 6, 7 The middle of 5 and 5 is 5 since it's the same number. 5 does show up in the data set. So, the median sometimes is one of the data values.
It could be the middle number but if the two miiddle numbers are 2 and 2, then you add them together(4) and divide by two. You get 2 as the median. This is why the median could sometimes be one of the data values.
The number is 49, First do 21 / 3 to find what 1/7 of the number is. We get 7, so we know 1/7 is 7 so if we do 7 x 7 we will have 7/7 or one whole and 7x7 is 49. Hope this helps