Measures of Cen...

Let the sum of the first three terms of an A.P. be $$39$$ and the sum of its last four terms be $$178$$. If the first term of this A.P. is $$10$$, then the median of the A.P. is:

Median of the data: $$1, 9, 4, 3, 7, 6, 8, 8, 12, 15$$ is.

A set of numbers consists of three $$4$$'s, five $$5$$'s, six $$6$$'s, eight $$8$$'s and seven $$10$$'s. The mode of this set of numbers is

A student obtained $$60, 75$$ and $$85$$ marks respectively in three monthly examinations in Mathematics and $$95$$ marks in the final examination. The three monthly examinations are of equal weightage whereas the final examination is weighted twice as much as a monthly examination. The mean marks of Mathematics are

Which of the following is not a measure of central tendency:

The median of $$34,32,48,38,24,30,27,21,35$$ is 

Which one of the following is not central tendency ?

Percentile divides the number of items into ______ equal parts.

The median of $$10,\space 14,\space 11,\space 9,\space 8,\space 12,\space 6$$ is

The mean of $$x, y, z$$ is $$y$$, then $$x+z =$$