Data Handling

We have learnt, that a collection of objects can be stored out based on their color, shape, size or any other common thing among them. We can organise all the information in a table to understand how many of each item is there in a collection. Information collected is called data.

1. Look at the picture.

Data Handling Count and Write

Count and write.

(i) How many apples?

(ii) How many watermelons?

(iii) How many bananas?

(iv) How many mangoes?

(v) How many more apples than mangoes?

(vi) Which fruit is greatest in number?

(vii) Which fruit is least in number?

(viii) Are there more apples or bananas?


LIST AND TABLE

2. A list is a record of important items. A shopping list can remind us about what to buy Geeta's mother gave her a list of stationery to buy.


                     List

Pencils

3

Crayons

3

Paint brushes

2

Eraser

1


Data Handling List and Table

Check if she has bought everything as per the list.

Is there an item she has forgotten to buy?

We can see pencils, crayons, paint brushes, sharpeners and erasers.


Is there an item that was not on the shopping list?

Let us tally the items with the list. Brushes-check. Pencils-check. Crayons- check. Erasers-check. Sharpener-uh Oh! The sharpener was not on the shopping list.


Is there an item she has bought more or less of?

Let us tally the items in the shopping bag with the list. Brushes-2-correct.

Pencils-3-correct. Crayons-3-correct. Erasers-1-Oh no! Geeta bought one sharpener and two erasers by mistake when the shopping list had no mention of a sharpener and just one eraser.

It is easier to tally the items by making a table as shown below.


Item

Number

Tally

Pencils

3

Crayons

3

Paint brushes

2

Sharpener

1

extra

Eraser

2

1 extra




3. Study the given table. It shows the number of hours that three friends spent in a park during the week. Based on this information, answer the questions that follow.

Data Handling Table

(i) How much time (in hours) did each one of them spend in the park? Who spent most amount of time in the park over the week?

Answer: Michael spent the most amount of time in the park over the week. He spent 2 + 2 + 1 + 2 + 3 + 4 = 14 hours in all whereas Joseph spent 1 + 2 + 2 + 1 + 3 + 4 = 13 and David spent 1 + 1 + 1 + 2 + 3 = 8 hours.


(ii) On which day none of them went to the park?

Answer: For some reason no one went to the park on Friday.


(iii) On how many days did all three friends definitely go to the park?

Answer: All three friends went to the park on 5 days which are Monday, Tuesday, Wednesday, Saturday and Sunday.


(iv) On how many days did each one of them go to the park?

Answer: Both Joseph and Michael went to the park on 6 days, but David went to the park on only 5 days.


(v) On which days did all of them spend the most time in the park?

Answer: All the friends were in the park the longest during the weekend. Joseph and Michael spent 7 hours while David spent 5 hours.


4. An ice cream vendor made this list of ice creams he sold on Sunday.


Cones

48

Cups

32

Bricks

8


(i) How many types of ice creams were sold by the ice cream vendor?

(ii) Which type of ice cream had the maximum sale?

(iii) How many ice creams were sold in all on Sunday?


1. Fill in the blanks:

(i) Information collected is called ...................

(ii) We can organise information in a ...................


Answer:

1. (i) data

(ii) table



2. Students of XYZ school, have prepared following details of birds seen in a bird sanctuary.

Kingfisher

25

Myna

18

Parrot

32

Pigeon

32

Bulbul

8

Answer the following questions:

(i) Which bird was seen the most?

(ii) Which bird was seen the least?

(iii) Which two birds were equal in number?

(iv) How many birds were seen in all?


Answer:

2. (i) Parrot and Pigeon

(ii) Bulbul

(iii)  Parrot and Pigeon

(iv) 115


3. Mr. John has collected details of weather conditions in a month.

Data Handling on Weather Conditions

Answer the following questions:

(i) How many sunny days are there in the month?

(ii) How many rainy days are there in the month?

(iii) How many days were having thunderstorm?

(iv) What is the total number of days in the month?

(v) How many more sunny days are there than rainy days in the month?


Answer:

3. (i) 15

(ii) 10

(iii) 2

(iv) 31

(v) 5



1. 15 students of Class 2 were asked what their favourite colour is. Following is their response:


Roll No.

Response

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Red

Red

Green

Yellow

Blue

Blue

Black

Black

Yellow

Green

White

Blue

Green

Yellow

Blue


Use the information to complete the list given.

Favourite Colour

Number of Students

Red

_____

Blue

_____

White

_____

Green

_____

Black

_____

Yellow

_____


2. The following list shows the ice cream flavours sold by a parlour on three days.

Flavour

Vanilla

Strawberry

Chocolate

Saturday

7

11

18

Sunday

9

15

22

Monday

5

7

11

By looking at the above list answer the following:

(a) Which is the best selling flavour over the three days?

(b) Which flavour sold the least?

(c) How many strawberry ice creams were sold over the three days?

(d) On which day were the least number of ice creams sold?

(e) On which day were the most number of ice creams sold?

(f) How many ice creams were sold in all over the three days?

4. The following table shows the number of students who attends different activities after school.

Music

15

Dance

10

Drama

8

Drawing

5

Games

10

Answer the following questions:

(i) How many students learn drama?

(ii) How many students learn music?

(iii) How many students in all learn dance and drama?

(iv) Which activity is attended by least number of students?


Answer:

4. (i) 8

(ii) 15

(iii) 18

(iv) Drawing


5. Mr. James has a toy shop. He has recorded the number of various items he sold last week.

Dolls

10

Aeroplanes

12

Balls

30

Cars

16

Guns

20

Trains

14

Answer the following questions:

(i) How many dolls were sold?

(ii) How many toys were sold in all?

(iii) How many more guns were sold than cars?

(iv) Which toy sold the most?

(v) Which toy sold the least?


Answer:

5. (i) 10

(ii) 102

(iii) 4

(iv) Balls

(v) Dolls



6. Prepare a table giving details of number of items you can carrying today in your school bad.

Item

Number

Item

Number


Framing Word Problem:

Create a story using the items in the table. You can use the words least, most, more and less in your story. Write your story in the space below.

Carrot

8

Capsicum

6

Brinjal

5

Tomato

12

Cauliflower

2

_________________________________________________________

_________________________________________________________

_________________________________________________________

_________________________________________________________

_________________________________________________________

_________________________________________________________


7. The shopkeeper collected details of ice creams sold in his shop in a month. He noted that most popular flavor is vanilla. He sold 25 more vanilla ice creams than chocolate ice creams. He sold 60 chocolate ice creams, 75 mango ice creams and 10 orange ice creams. Write the details in the following table.

2nd Grade Data Handling

Answer the following questions:

(i) Which flavor had the least sales?

(ii) Which flavor had the most sales?

(iii) How many vanilla ice creams were sold?

(iv) How many more mango ice creams than chocolate ice creams were sold?


Answer:

7.

Ice cream

Number

Orange

10

Chocolate

60

Mango

75

Vanilla

85

(i) Orange

(ii) Vanilla

(iii) 85

(iv) 15





2nd Grade Math Practice

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