EASY
7th CBSE
IMPORTANT
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The number of times a particular observation occurs is called its of data.

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Important Questions on Collection and Organisation of Data (Mean, Median and Mode)

EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 5

Arranging the data in the form of table is called _____ of data.

EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 6
Find the mean of first five natural numbers.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 7
Find the mean of first six odd natural numbers.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 8
Find the mean of first seven even natural numbers.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 9
Find the mean of first five prime numbers.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 10
Find the mean of first six multiples of 5.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 11

The following table shows the weights (in kg) of 15 workers in a factory.

 

Weight in kg 60 63 66 72 75
Number of workers 4 5 3 1 2

Calculate the mean weight.

EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 21 - Collection and Organisation of Data (Mean, Median and Mode)>EXERCISE 21A>Q 12

The daily wages (in rupees) of 60 workers in a factory are given below:

Daily wages (in ₹) 280 300 320 360 380
Number of workers 14 16 15 7 8

Calculate the mean of daily wages.