10, 2, 19, 24, 6, 23, 47, 24, 54, 77
Extremely simple to perform in R, deliberately created to familiarize with some statistical functions that can serve us in the future. Not carry over mathematical formulas, which you can find in any book of mathematics, or Wikipedia.
a = c(10, 2, 19, 24, 6, 23, 47, 24, 54, 77)
mean(a) #calculate the arithmetic mean
[1] 28.6
median(a) #calculate the median
[1] 23.5
var(a) #calculate the variance
[1] 561.8222
sd(a) #calculate the standard deviation
[1] 23.70279
max(a) #shows the larger value of the sequence
[1] 77
min(a) #shows the smallest value of the sequence
[1] 2
sum(a) #sum all the values
[1] 286
sum(a)*sum(a) #calculates the square of the sum of all values
[1] 81796
sum(a*a) #calculates the sum of the squares of all values
[1] 13236
sum(rank(a)) #sum of ranks assigned to the variables contained in a
[1] 55
sum(rank(a)[1:6]) #sum of ranks assigned to the first 6 values of a
[1] 21.5
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