Mode of observations 0, 1, 6, 7, 7, 2, 3, 7, 6, 6, 2, 6, 7, 0, 5, 0, 6, 0, 7, 0, 7 is

Mode of the observations 10, 11, 16, 17, 12, 13, 17, 16, 16, 12, 16, 10, 15, 16, 10 is

If the median of observations 12, 1, 8, 54, 61, 28, 45, 35, 21, 17 is M, then what is the value of 2M + 5?

Unit digit of 1³+2³+3³+...+9³ is

What is the LCM of 3·6, 0·009, 0·27?

The sum of deviations of a set of observations x₁, x₂, ...., xₙ measured from 50 is −10 and the sum of deviations from 46 is 70, then the number of observations is