double jogo blazeIf the number of observations is odd, the number in the middle of the list is the median. This can be found by taking the value of the (n+1)/2 -th term, where n is the number of observations. Else, if the number of observations is even, then the median is the simple average of the middle two numbers. To find the sum of first n odd numbers we can use the formula Sn= n2. For example, to calculate the sum of odd numbers between 1 to 10, we know that n = 5. Thus, S5 = 52 = 25. |
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