If 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.site de aposta de skin sitemap endereço:2233 Avenida Vereador José Monteiro,23- Setor Nova Vila, Goiânia GO Brasil Contate-nos:+55 31 937136721
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