Consider the following statements in respect of class intervals of grouped frequency distribution: (1) Class intervals need not be mutually exclusive (2) Class intervals should be exhaustive. (3) Class intervals need not be of equal width. Which of the above statements are correct? (A) 1 and 2 only (B) 2 and 3 only (C) 1 and 3 only (D) 1, 2 and 3

In any grouped frequency distribution class intervals are of equal width.

In the following grouped frequency distribution table class marks are given. Construct class intervals of the data. (Exclusive class intervals)

If the class intervals of a frequency distribution are 1-10, 11-20, 21-30, ….,51-60 then the size of even class is

Consider the following in respect of the function f(x)={2+x, x>=0; 2-x, x 1) f(x) does not exist. (2) f(x) is differentiable at x=0 (3) f(x) is continuous at x=0 Which of the above statements is/are correct? (a) 1 only (b) 3 only (c) 2 and 3 only (d) 1 and 3 only

Consider the following statements There are infinitely many rational numbers between two distinct 1...integers. 2 rational numbers 3, real numbers Which of the statements above are correct (a) Only 1 and 2 ((b) Only 2 and 3 c) Only 1 and 3 (d) 1, 2 and 3

Consider the following statements regarding the Mahalwari System of land revenue: 1. It was introduced in the Ganga valley, the north west provinces, parts of central India and the Punjab. 2. The revenue settlement under this system was done with landlords or heads of families who collectively claimed to be landlords of the village or the estate. 3. Under this system, the land revenue was determined on permanent basis. Which of the statements given above are correct? a) 1 and 2 only b) 2 and 3 only c) 1 and 3 only d) 1, 2 and 3

{:("Class Interval",1-5,6-10,11-15,16-20),("Frequency",3,7,6,5):} Consider the following statement is respect of the above frequency distribution. I. The median is contained in the modal class. II. The distribution is bell-shaped. Which of the above statement is/are correct?

Consider the following statements : The appropriate number of classes while constructing a frequency distribution should be chosen such that 1. the class-frequency that increases to a peak and then declines. 2. the class-frequency should cluster around the class mid point. Which of the statements given is/are correct?

using class intervals 1-5,6-10,11-15,...... construct the frequency distribution following data: