11 , 3 3 , 5 5 , 7 7. This is an arithmetic sequence since there is a common difference between each term. In this case, adding 2 2 to the previous term in the sequence gives the next term. In other words, an = a1 +d(n−1) a n = a 1 + d ( n - 1). Arithmetic Sequence: d = 2 d = 2. 3- 1 = 5 - 3 = 7 - 5 = 9 - 7 = +2 Since every preceding term is 2 more than the previous term. Thus, the required variance of this given data 1, 3, 5, 7, and 9 is +2. Learn more about arithmetic here: #SPJ2 13 5 7 9. Natural Language. Math Input. Extended Keyboard. Examples. Random. Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels. nthterm of the sequence 1,2,3,5,7,9 what will be the formula for finding the nth term of a series in which the difference between the terms increase by 1 after every k elements. For example (for k = 3) : 1,2,3,5,7,9,12,15,18.. Explanation The sequence is. 1,3,5,7,9. The common difference d is the difference between any two consecutive numbers of the series. d1 = 3 − 1 = 2. d2 = 5 − 3 = 2. d3 = 7 − 5 = 2. So the common difference d of this arithmetic sequence: d = 2. Themean of 1, 3, 5, 7, 9, 11, 13 is 7. We can easily solve this problem by following the given steps. Mean of the given data = 1+3+5+6+9+11+13/7 ( The total number of observations here is 7. Step-by-step explanation: Mean of 3,5,7,9,11,13,15. No. of data =7. ∴Mean= 7. 3+5+7+9+11+13+15 = 7. 63 =9. Arithmetic mean (AM) .

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