Arts (English Medium) Class 12 - CBSE Question Bank Solutions

Assertion: High level of human development group has 53 countries.

Reason: A higher investment in people and good governance has set this group apart from others.

Answer the following question in about 30 words:

What is the advantage of a foot note in a table?

Define correlation.

What are various steps for the calculation of rank order correlation?

What is the importance of an index number?

What is meant by family planning?

What are the population control measures?

Answer the following question in about 30 words:

What do you mean by data processing?

The measure of central tendency always coinciding with the hump of any distribution is ______.

A scatter plot represents negative correlation if the plotted values run from:

What is the maximum extent of correlation?

Write a detailed note on the degree of correlation.

Draw scatter plots showing different types of perfect correlations.

In a tally mark grouping by four and crossing fifth is called ______.

An Ogive is a method in which ______.

If both ends of a group are taken in frequency grouping, it is called ______.

Collect the last test result of Geography of your class and represent the marks in the form of a group frequency distribution.

In a class of 35 students of Geography, following marks were obtained out of 10 marks in unit test – 1, 0, 2, 3, 4, 5, 6, 7, 2, 3, 4, 0, 2, 5, 8, 4, 5, 3, 6, 3, 2, 7, 6, 5, 4, 3, 7, 8, 9, 7, 9, 4, 5, 4, 3. Represent the data in the form of a group frequency distribution.