The number of times a particular item occurs in a class interval is called its ________________

Which of following statements are true for secondary data

1. Data is not originally collected rather obtained from published or unpublished sources.

2. Secondary data are collected by an individual or an institution for some purpose and are used by someone else in another context.

3. The secondary data should be used with great care.

Supposing that there were 40 students in science in the year 2009 . How much total of marks did they receive combined together ?

What type of graph is a frequency polygon?

The collected data can be represented pictorially using __________________.

The difference between the maximum and minimum observation in the data is _________________

The inclusive form of class boundary is defined as ________________________________________.

The class mark of the class is 25 and if the upper limit of that class is 32, the lower limit for that class is ______________________.

Which of the following statement is true regarding range of data:

1. It tells us how widely the numbers are spread.

2. It is the difference of the highest and the lowest observation.

3. It is the average number of observations.

What is the ratio of the total sales of branch B2 for both years to the total sales of branch B4 for both years?