8th Standard CBSE Mathematics - Data Handling Two Marks Questions | QB365

8th Standard CBSE Syllabus & Materials

8th Standard CBSE

CBSE 8th Social Science Theme D - Factors of Production - New Model Questions Papers Study Material - QB365 Set A

8th Standard CBSE

CBSE 8th Social Science Theme C - Universal Franchise and India's Electoral System - New Model Questions Papers Study Material - QB365 Set A

NEW

8th Standard CBSE

CBSE 8th Social Science Theme B - The Rise of the Marathas - New Model Questions Papers Study Material - QB365 Set A

NEW

8th Standard CBSE

CBSE 8th Social Science Theme B - Reshaping India's Political Map - New Model Questions Papers Study Material - QB365 Set A

NEW

8th Standard CBSE

CBSE 8th Social Science Theme A - Natural Resources and Their Use - New Model Questions Papers Study Material - QB365 Set A

NEW

8th Standard CBSE

CBSE 8th Science Keeping Time with Skies - New Model Questions Papers Study Material - QB365 Set A

8th Standard CBSE Mathematics - Data Handling Two Marks Questions

Published on: 16/09/2019

Data Handling

Download CBSE Class 8th Standard CBSE Mathematics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 8th Standard CBSE Mathematics

Questions + Answers key

Take MCQ Mathematics Test

QB365 Student Learing Managemnet System

Std: 8th Standard CBSE - Mathematics

chapter: - Model Question paper

Visit QB365-SLMS - https://www.qb365.in/slms/ Complete Questions and Answers

Questions:

Generic 2

15 x 2 = 30

A coin is tossed three times. Find the number of possible outcomes.

Tally marks are used to finds which of the following:
(i) frequency
(iii) Class size
(ii) Class a intervals
(iv) range

What is the probability that a number selected from the numbers 3, 4, 5, 6, ... , 20 is a multiple of 3?

What is the probability that a number selected from the numbers 3, 4, 5, 6, ... , 20 is an odd number?

Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of getting a number greater than 6?

Find the probability of getting an ace from a well-shuffled deck of 52 playing cards?

Find the probability of the pointer stopping on D.

List the outcomes you can see in these experiments.

Spinning a wheel.

Suppose you spin the wheel.

Find the probability of getting a green sector.

10.

In throwing a die:
Suppose the second player got a six. Does it mean that the third player would not have a chance of getting a six?

11.

You have a bag with five identical balls of different colours and you are to pull out (draw) a ball without looking at it. List the outcomes you would get in adjoining figure.

12.

The following data represents the different type of animals and their numbers in a zoo. Prepare a pie chart for the given data.

Animals	Number of animals
Deer	42
Elephants	15
Giraffe	26
Reptiles	24
Tiger	13

13.

Which form of graph would be appropriate to display the following data.

**Production of food grains of a state.**
Years	2001	2002	2003	2004	2005	2006
Production (in lakh tonne)	60	50	70	55	80	85

14.

The marks scored by 24 students in a test are given below:
64, 47, 58, 44, 53, 72, 51, 41, 57, 89, 53, 84, 57, 78, 71, 56, 62, 54, 42, 68, 53, 68, 49, 56
Complete the following frequency table:

Marks in class intervals	Tally marks	Frequency (Number of students)
40 - 50
50 - 60
60 - 70
70 - 80
80 - 90

What is the class interval in which the greatest frequency occurs?

15.

The earning of 50 shops on a particular day are as follows (the figures have been estimated to the nearest hundreds):

Earning (in Rs)	800	1300	1700	2300	2800	3200	3400
Number of shops	7	9	2	5	17	7	4

Prepare a grouped frequency distribution table taking class interval of equal size, one such interval being 1500 - 2000.

Visit QB365-SLMS - https://www.qb365.in/slms/

Answers Key:

Generic 2

15 x 2 = 30

Tally marks are used to find frequency.

Required probability = \(\frac{1}{3}\)

Required probability = \(\frac{1}{2}\)

There are ten separate slips having 1 to 10 numbers (one number on one slip) out of which one slip can be chosen in 10ways.
So, total number of outcomes = 10
Here, the numbers greater than 6 are 7, 8, 9 and 10. So, one slip having number greater than 6 can be chosen in 4 ways.
So, favourable outcomes = 4
\(\therefore\) Probability of getting a number greater than 6 = \(\frac{Favourable\ outcomes}{Total\ number\ of\ outcomes}=\frac{4}{10}=\frac{2}{5}\)

There are 52 cards in a deck of playing cards out of which one card can be drawn in 52 ways.
\(\therefore\) Total number of outcomes = 52
There are 4 aces in a deck of 52 cards, out of which one ace can be drawn in 4 ways.
So, favourable number of outcomes = 4
\(\therefore\) Probability of getting an ace = \(\frac{Favourable\ number\ of\ outcomes}{Total\ Number\ of\ outcomes}=\frac{4}{52}=\frac{1}{13}\)

In spinning a wheel, there are five possible outcomes,
[since wheel has five sectors]
So, total outcomes = 5
The pointer can stop on D only in one way.
[since, angle only one sector hasD]
SO, outcomes that make the event = 1
\(\therefore\) Probability of the pointer stopping on D = \(\frac{Possible\ outcomes\ that\ make\ the\ event }{Total\ outcomes}=\frac{1}{5}\)

Here, spinning a wheel have 5 sectors represented by A, A, B, C and 0, so possible outcomes are A, B, C and D. Here, A comes twice on wheel but in outcomes, it will be taken as single.

Total number of outcomes = Total number of green and red sectors = 5 + 3 = 8
Number of outcomes of getting a green sector = 5
Probability of getting a green sector = \(\frac{Number\ of\ outcomes\ of\ getting\ a\ green\ sector}{Total\ number\ of\ outcomes}=\frac{5}{8}\)

10.

No, if second player got a six, it does not mean that third player would not have a chance of getting a six.

11.

Here, number of balls is 5, which are of different colours. If we pull out a ball, then it may be R, W, B, G or Y. So, possible outcomes are R, W, B, G or Y.

12.