CBSE Class 8 - Mathematics - Data Handling (Worksheet) (#cbseNotes)

Data Handling (Worksheet) 

Fill in the blanks.

① The information collected in term of numbers is called __________.


② Data available in an unorganised form are called __________.


③ The number of times a particular observation occurs in a given data is called its __________.


④ When the data are large, they can be arranged in groups and each group is known as ___________ or __________.




⑤ A table showing the frequencies of various observations or class intervals of a given data is called a ________________________.


⑥ The upper value of a class interval is called its _______________ and the lower value of the class interval is called its __________________.


⑦ The difference between the upper class limit and lower class limit of a class is called the ________ or __________ of the class.


⑧ The difference between the lowest and the highest observation in a given data is called its _______.


⑨ _________ is a type of bar diagram, where the class intervals are shown on the horizontal axis and the heights of the bars (rectangles) represent the _________ of the class interval. There is no gap between the bars.


⑩ Data can also be represented using a circle graph, is called __________.


⑪ The range of the data– 9, 8, 4, 3, 2, 1, 6, 4, 8, 10, 12, 15, 4, 3 is ______


⑫ A two dimensional graphical representation of a continuous frequency distribution is called a _______.


⑬ A pie chart shows the relationship between a ______ and its ______. The whole circle is divided into _______.


⑭ There are certain experiments whose outcomes have an equal chance of occurring. Such outcomes are said to be ____________.
?


⑮

Probability of an event =	?
	?

⑯ The middle value of a class interval is call its ____________.



Answers:

1. data
2. raw data
3. frequency
4. Class / Class Interval
5. Frequency Distribution table
6. Upper Class Limit, Lower Class Limit
7. Width or Size
8. Range
9. Histogram, frequency
10. pie chart
11. 14
12. histogram
13. whole, parts, sectors
14. equally likely

15.

Probability of an event =	Number of outcomes that make an event
	Total number of outcomes of the experiment

16. class mark