Class 8th CBSE Mathematics Data Handling + Pie Chart

**Free Online Classroom JSUNIL TUTORIAL for***8th*9th & 10th1. 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. 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?

7. Three unbiased coins are tossed together. Find the probability of getting: (i) all heads (ii) two heads

(iii) one head (iv)At least two head

[ hint : Possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH and TTT Ans: 1/8 , 3/8 , 3/8,1/2(HHH, HHT, HTH and THH)]

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

9. 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) [ 1/13, 7/13, 3/13,3/26]

10. 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.[n=6 1/6,5/12]

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Read more question for practice :

Work sheet:Maths - Chapter: Probability

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. 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?

7. Three unbiased coins are tossed together. Find the probability of getting: (i) all heads (ii) two heads

(iii) one head (iv)At least two head

[ hint : Possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH and TTT Ans: 1/8 , 3/8 , 3/8,1/2(HHH, HHT, HTH and THH)]

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

9. 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) [ 1/13, 7/13, 3/13,3/26]

10. 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.[n=6 1/6,5/12]

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Read more question for practice :

**View**Work sheet:Maths - Chapter: Probability

**View** 8th Data Handling : Statics -Test Paper |

__Pie Chart__1. There are 216workers in a factory and in which 75 are laborers. What would be the central angle of the sector representing laborers in the pie chart ?

2. 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 with class intervals 60-70 and so on.

3. 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

4. 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 Expenditure Rent

4000 5400 2800 1800 400

5. 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

**Visualizing Solid Figure**

1. In a polyhedron there are 8 vertices and 12 edges find its no. of faces.

2. In a polyhedron there are 8 edges and 5 faces find its no. of vertices.

3. In a polyhedron there are 5 faces and 6 vertices find its no. of edges.

4. A polyhedron has 8 faces, 12 vertices find its no. of edges.

5. A polyhedron has 6 edges and 4 faces find its no. of vertices.

6. A polyhedron has 7 vertices and 12 edges. Find its no. of faces.

Answer: 1. 6 2. 5 3. 9 4. 18 5. 4 6. 7

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