Data Handling and Presentation | IT

Question 1

To figure out the most popular game in their class, what should Navya and Naresh do? Can you help them?

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Solution

We collect and organize data. This finds the popular game.

Step 1 — Collect Information

Navya and Naresh should ask every student. They ask, "What is your favourite game?" They write down each student's answer. This is how they gather the raw information.

Action=Ask each student\text{Action} = \text{Ask each student}

=Write down their answer= \text{Write down their answer}

Raw data is collected\boxed{\text{Raw data is collected}}

Diagram 1

Step 2 — Organize Information

Next, they need to organize the collected answers. They can make a table with two columns. One column will list the names of the games. The second column will be for tally marks. For each game choice, draw one tally mark. A group of 5 tally marks is shown as \cancel{||||}. After all answers are tallied, they will count the marks. They will write the total number for each game.

Action=Create a table\text{Action} = \text{Create a table}

=Use tally marks for each game= \text{Use tally marks for each game}

=Count the total for each game= \text{Count the total for each game}

Tally chart is prepared\boxed{\text{Tally chart is prepared}}

Step 3 — Find the Most Popular

Now, Navya and Naresh look at the total numbers. They compare total numbers for each game. The game with the largest total is most popular. This game was chosen by the most students.

Action=Compare total counts\text{Action} = \text{Compare total counts}

=Find the largest count= \text{Find the largest count}

Most popular game is identified\boxed{\text{Most popular game is identified}}

Answer

(i) Navya and Naresh ask every student their favourite game. (ii) They record answers. Then they make a tally chart. (iii) The game with the most tally marks is most popular.

More questions in IT

Q1

To figure out the most popular game in their class, what should Navya and Naresh do? Can you help them?

Q2

Based on the pictograph of 'Modes of Travelling', answer the following questions:

  • Which mode of travel is used by the most number of students?
  • Which mode of travel is used by the least number of students?
Q3

Jarina and Sangita collected data on how many students were present in each class (shown in the table on the previous page).

Q. If they want to show their data through a pictograph, where they also use one symbol ☺ for each student, as Lakhanpal did, what are the challenges they might face?

Q4

What could be the problems faced in preparing such a pictograph, if the total number of students present in a class is 33 or 27?

Q5

Answer the following questions using the bar graph:

  1. In Class 2, _________ students were absent that day.
Q6

Answer the following questions using the bar graph:

  1. In which class were the maximum number of students absent?
Q7

Answer the following questions using the bar graph:

  1. Which class had full attendance that day? _________
Q8

On the basis of this bar graph, what may be a few questions you may ask your friends?

Q9

How much did the population of India increase over 50 years?

How much did the population increase in each decade?

Q10

Use the bar graph to answer the following questions:

  1. On which item does Imran’s family spend the most and the second most?
Q11

Use the bar graph to answer the following questions:

  1. Is the cost of electricity about one-half the cost of education?
Q12

Use the bar graph to answer the following questions:

  1. Is the cost of education less than one-fourth the cost of food?
Q13
  1. The following pictograph shows the number of tractors in five different villages.

Observe the pictograph and answer the following questions—

a. Which village has the smallest number of tractors?

b. Which village has the most tractors?

c. How many more tractors does Village C have than Village B?

d. Komal says, "Village D has half the number of tractors as Village E." Is she right?

Q14
  1. The number of girl students in each class of a school is depicted by the pictograph:

Observe this pictograph and answer the following questions:

a. Which class has the least number of girl students?

b. What is the difference between the number of girls in Classes 5 and 6?

c. If two more girls were admitted in Class 2, how would the graph change?

d. How many girls are there in Class 7?

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