Given a vector, find the average of even-numbered columns.
x = [ 4 6 8 9 1 2 7 ]
y = ( 6 + 9 + 2 ) / 3
Right and wrong
Return the first and last character of a string
Add two numbers
sum of first 'n' terms
Delete the column with all 0 in the TABLE
Probability of red tulips
Average of odd values
Let's eat cake with friends!
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