In question, fill in the blanks to make the statements true.

Histogram given on the right shows the number of people owning the different number of books.

The number of people having books more than 20 and less than 40 is __________.

In question, fill in the blanks to make the statements true.

Histogram given on the right shows the number of people owning the different number of books.

The number of people owning books more than 60 is __________.

In question, fill in the blanks to make the statements true.

Histogram given on the right shows the number of people owning the different number of books.

The number of people owning books less than 40 is __________.

In question, fill in the blanks to make the statements true.

The number of times a particular observation occurs in a given data is called its __________.

In question, fill in the blanks to make the statements true.

When the number of observations is large, the observations are usually organized in groups of equal width called __________.