(3) a 1= the first term in the sequence a 10= 2+9(3) d= common difference a 10= 29 To find the sum, we need this equation: S n= (n(a 1+a n))/2 where: n= terms of the arithmetic sequence Next is we have to substitute and co...
For discrete distribution, which you seem to be more familiar with, you know that the average is not always the best approach for finding a central value, you are often better to use the median instead (and the interquartile range is better as an estimate of spread). Unless you haven't...