Below is the frequency distribution of the weights (in kg) of some sample of teen-agers. Weight(in kg) f
[41-45] 2
[46-50] 5
[51-55] 7
[56-60] 4
[61-65] 1
[66-70] 1
1. How many respondents were in the study?
2. What is the mean weight of the group?
3. Which is the median class?
4. What is the lower boundary of the median class?
5. What is , the less than cumulative frequency below the before the class?
6. What is the frequency of the median class?
7. What is the width of the median class?
8. What is the median score?
9. Which is the modal class?
10. What is the modal score?

Usually, the terms “data” and “information” are used interchangeably. However, there is a subtle difference between the two.

In a nutshell, data can be a number, symbol, character, word, codes, graphs, etc. On the other hand, information is data put into context. Information is utilised by humans in some significant way (such as to make decisions, forecasts etc).

A basic example of information would be a computer. A computer uses programming scripts, formulas, or software applications to turn data into information.

Let us have a detailed look at the difference between data and information in a tabular column below

i would need to see the dot plot : )

moderators are