CBSE Class 8 Mathematics Data Handling Assignment Set 04

DATA HANDLING AND RATIONAL NUMBERS

1. If a die is thrown once, what is the probability of getting a prime number?

2. A coin is tossed 200times and tail is obtained 128 times. Now, if a coin is tossed at random, what is the probability of getting a tail?

3. In 100 throws of a dice, 5 is obtained 42 times. In a random throw, what is the probability of getting a 5? 

4. A bag has 6 red balls and 8green balls. A ball is drawn from a bag without looking in to the bag. What is the probability of getting a green ball?

5. What is the probability of occurrence of an event?

6. There are 216workers in a factory and in which 75are laborers. What would be the central angle of the sector representing laborers in the pie chart ?

7. If 45%of the people residing in a locality are Hindus, then what is the central angle of the sector representing the Hindus in the pie chart?

8. The weekly pocket expenses (in rupees) of 30students of a class are given below: 62 ,80 ,110 ; 75 ; 84 ; 73 , 60 , 62, 100 , 87 , 78 , 94 ,117, 86, 65, 68,; 90,; 80,118 ,72; 95; 72; 103; 96; 64; 94; 87; 85; 105; 115 Construct a frequency table withclassintervals 60-70 and so on.

9. The marks of a student in different subject are given below: Represent the below data by a bar graph.

Subject   Maths Science   Hindi English  Social science

Marks       75        70         50    55         65 

10. The monthly income of a family is Rs14400. The monthly expenditure of the family on various items is given below. Represent the given data by a pie chart. 

Item:          Food      Clothing    Education Savings   Rent 

Expenditure  4000      5400        2800        1800     400 

11. The data on religion wise division of 1080 workers of a factory are given below: Represent the given data by a pie chart.

Religion                     Hindu Muslim    Sikh    Christian

Numbers of workers   450     270        255     105

12. If a dice is thrown. What is the probability of getting: (i) an odd number (ii) a multiple of 3 (iii) a perfect square numbers (iv) a number less than 4? 

13. Two unbiased coins are tossed together. Find the probability of getting:

(i) all heads (ii) two heads (iii) one head (iv)At least two head

14. Find the probability that a leap year selected at random will contain 53 Sundays.[2/7]

15. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn.

Find the probability that the card drawn is : (i) an ace (ii) either red or king (iii) a face card (iv) a red face card)

16. Two dice are thrown simultaneously. Find the probability of getting: (i) a doublet i.e. same number on both dice. (ii)  The sum as a prime number.

17. Fill in the blanks in the following table.

24. Multiply 6/13 to reciprocal of -7/16

25. Write any 3 rational numbers between –2 and 0.

26. Find any ten rational numbers between -5/6 and -5/8.

27. Find a rational number between ¼ and ½

Click on link below to download CBSE Class 6 Mathematics Basic Geometrical Ideas Assignment Set B