Arrange the countries in the ascending order of yield. Do the same exercise for the descending order of yield. The yield of different countries ( 2013 ) Country Yield of wheat(kg/hectare) Canada 3594 China 5055 France 7254 Germany 7998 India 3154 Pakistan 2787

Wheat is the second most important staple food after the rice is consumed by the population in India and is likely to increase further due to changes in food habits. Durum wheat is most suitable for making macaroni, noodles, and semolina products. Similarly, Wheat (Triticum spp.) occupies the prime position among the food crops in the world. Therefore, it has played a very vital role in stabilizing the foodgrain production in the country over the past few years. Following is the chart in ascending order of yield of countries:- Country Yield of wheat(kg/hectare) Pakistan 2787 India 3154 Canada 3594 China 5055 France 7254 Germany 7998 The chart in descending order of yield of countries is as follows:- Country Yield of wheat(kg/hectare) Germany 7998 France 7254 China 5055 Canada 3594 India 3154 Pakistan 2787

Find out the years in which India’s population was minimum and maximum. Population of India (in crores) Year Population(in crores) 1951 35 . 7 1961 43 . 8 1971 54 . 6 1981 68 . 4 1991 81 . 8 2001 102 . 7 2011 121 . 0

India, the second most populated country in the world with nearly a fifth of the world's population and is projected to overtake top-ranking China within forty years. Similarly, at the time of Independence, India was still one of the most populous countries with 350 million people. In the year, 1951 India's population was minimum and in 2011 , India's population was maximum.

Organisation of data means

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Which class has the maximum concentration of data? Express it as a percentage of total observations. Which class has the minimum concentration of data?

Frequency Distribution of Marks in Mathematics of 100 Students

Marks	Frequency
$0 - 10$	$1$
$10 - 20$	$8$
$20 - 30$	$6$
$30 - 40$	$7$
$40 - 50$	$21$
$50 - 60$	$23$
$60 - 70$	$19$
$70 - 80$	$6$
$80 - 90$	$5$
$90 - 100$	$4$
Total	$100$

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Express the values of frequency as proportion or percentage of total frequency. Note that frequency expressed in this way is known as relative frequency.

Frequency Distribution of Marks in Mathematics of 100 Students

Marks	Frequency
$0 - 10$	$1$
$10 - 20$	$8$
$20 - 30$	$6$
$30 - 40$	$7$
$40 - 50$	$21$
$50 - 60$	$23$
$60 - 70$	$19$
$70 - 80$	$6$
$80 - 90$	$5$
$90 - 100$	$4$
Total	$100$

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Arrange the countries in the ascending order of yield. Do the same exercise for the descending order of yield.

The yield of different countries $(2013)$

Country	Yield of wheat(kg/hectare)
Canada	$3594$
China	$5055$
France	$7254$
Germany	$7998$
India	$3154$
Pakistan	$2787$

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

The objects around can be grouped as either living or non-living. Is it a quantitative classification?

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Find the country whose yield of wheat is slightly more than that of India's. How much would that be in terms of percentage?

The yield of wheat of different countries ( $2013$ )

Country	Yield of wheat(kg/hectare)
Canada	$3594$
China	$5055$
France	$7254$
Germany	$7998$
India	$3154$
Pakistan	$2787$

EASY

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Do you agree that classified data is better than raw data? Why?

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Can there be any advantage in classifying things? Explain with an example from your daily life.

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Find out the years in which India’s population was minimum and maximum.

Population of India (in crores)

Year	Population(in crores)
$1951$	$35.7$
$1961$	$43.8$
$1971$	$54.6$
$1981$	$68.4$
$1991$	$81.8$
$2001$	$102.7$
$2011$	$121.0$

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Visit your local post-office to find out how letters are sorted. Do you know what the pin-code in a letter indicates?

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Explain the ‘exclusive’ and ‘inclusive’ methods used in classification of data.

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Which of the following alternatives is true? (iii) Statistical calculations in classified data are based on

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Use the data in Table 3.2 that relate to monthly household expenditure (in Rs) on food of 50 households and:

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Which of the following alternatives is true? (i) The class midpoint is equal to:

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

What is ‘loss of information’ in classified data?

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Do you agree that classified data is better than raw data? Why?

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Bar diagram is a:

MEDIUM

Economics>Statistics in Economics>Organisation of Data>Classification of Data

Can there be any advantage in classifying things? Explain with an example from your daily life.

HARD

Economics>Statistics in Economics>Organisation of Data>Classification of Data

The purpose of classification is to

Organisation of data means.

Important Questions on Organisation of Data

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