The document NCERT Solutions(Part - 3) - Data Handling Class 7 Notes | EduRev is a part of the Class 7 Course Mathematics (Maths) Class 7.

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**Ques 1: Fill in the blanks: ****(i) Mean of first 5 natural numbers is ___________****(ii) Range fo the data 12, 15, 7, 9, 16, 18 is ___________****(iii) Median of the data 38, 40, 42, 48, 65, 72, 75, is ___________****(iv) Mode of the data 2, 3, 5, 6, 7, 3, 2, 9 is ___________****Ans: ****(i)** 3**(ii)** 11**(iii)** 48**(iv)** 3**Ques 2: A die thrown once find the probability of the following:****(i) Getting a number greater than 5.****(ii) Getting a prime number.****(iii) Getting an even natural number.****(iv) Getting a number less than 4.****Ans: (i) **1/6**(ii)** 1/2**(iii)** 1/2**(iv)** 1/2**Ques 3: If mean of 9, 5, 7, x, 6 is 6, find the value of x.****Ans: **3**Ques 4: What is the range of the these integers? 20, 6, 18, â€“15, â€“12, 0****Ans: **35**Ques 5: State whether the given statements are true or false****(i) Mean of the data is always from the given data.****(ii) The range of the data 2, 9, 6,5, 8 would change if 3 was added to each value in the data.****(iii) When a coin to tossed, there are two possible outcomes.****(iv) Probability of selecting you as a monitor within classs is greater than one.****Ans:**** (i)** False**(ii)** False**(iii)** True**(iv)** False**Ques 6: Study the bar graph given below and answer the questions that follow:**

**(ii) Calcualte the average marks of the studnet.****(iii) If 75 and above marks denote a distiniction, then name the subjects in which the student got distinction.****(iv) Calcualte the percentage of marks the student got oug of 500.****Ans:** **(i)** Mathematics**(ii)** 73.6**(iii)** Hindi, Mathematics**(iv)** 73.6%**Ques 7: Observe the following data and answer the questions that follow:**

Days of the Week | Mon | Tue | Wed | Thu | Fri | Sat |

No. of plants planted by students in a shchool | 25 | 45 | 35 | 38 | 40 | 30 |

**(i) Draw a bar graph to represtn the above given in formation.****(ii) On which day of the week maximum number of plants planted by students.****(iii) Find the ratio of the minimum and maximum number of plants planted.****(iv) Find the total no. of plants planted.****Ans: ****(i)**

**(ii)** Tuesday**(iii)** 5:9**(iv)** 213**Ques 8: Study the double bar graphs given below and answer the following questions:**

**(i) Which sport is liked the most by class VII students?****(ii) How many student are there in class VII if each student play only one sport?****(iii) How many students of class VI like hocky and football in all?****(iv) For which spart the number of students of class VII is more than that of class VI.****Ans: ****(i)** Circket**(ii)** 48**(iii)** 24**(iv)** Tennis

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210 videos|109 docs|45 tests

### What is the Range of Data?

- Video | 05:18 min
### Examples: Mean, median and mode

- Video | 11:11 min
### Test: Data Handling - 3

- Test | 20 ques | 20 min
### How to Draw Bar Graphs?

- Video | 10:30 min
### Examples: Mean and Range of Data (Part- 2)

- Video | 09:05 min
### Understanding: Chance and Probability

- Video | 01:24 min

- Overview of Mean, Median and Mode
- Video | 07:16 min
- NCERT Solutions(Part - 2) - Data Handling
- Doc | 4 pages