sinxoo

While computing mean of grouped data, we assume that the frequencies are

(A) evenly distributed over all the classes
(B) centred at the classmarks of the classes
(C) centred at the upper limits of the classes
(D) centred at the lower limits of the classes

Stats MCQs

Author: sinxoo

Report : If answer is wrong.

If α variable takes the discrete values : α + 4, α -7/2 ,α -5/2 , α–3, α– 2, α +1/2 , α -1/2 , α+ 5, (α> 0) then the median is –

If AM of a, a+3, a+6, a+9 and a+12 is 10, then a is equal to;

The measure of central tendency which is given by the x-coordinate of the point of intersection of the ‘more than’ ogive and ‘less than’ ogive is –

If 10, 13,15,18,( x + 1),(x + 3),30,32,35 and 41 are ten observations in the ascending order with median 24, find the value of ‘x’.

The mean of squares of first five natural numbers is-

While computing mean of grouped data, we assume that the frequencies are

The median of the data 13, 15, 16, 17, 19, 20 is:

The marks obtained by 9 students in Mathematics are 59, 46, 30, 23, 27, 44, 52, 40 and 29. The median of the data is

Find the mean of the first six prime numbers.

The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its