Class 8 Quiz Level 1 (Easy) – Data Handling

Total questions: 30

Which of the following is NOT a method of organizing data?

Topic: Organizing Data

Deselect Answer

Tabular form

Bar graph

Random arrangement

Frequency distribution

None

In a bar graph, the width of each bar should be:

Topic: Graphical Representation of Data

Deselect Answer

Equal

Different

Proportional to the values

Based on the frequency

None

What is the first step in organizing data?

Topic: Organizing Data

Deselect Answer

Collecting data

Drawing graphs

Calculating mean

Finding probability

None

If you have a list of students' marks, what is the best way to organize it?

Topic: Organizing Data

Deselect Answer

Arrange the marks randomly

Write the marks in ascending or descending order

Create a bar graph directly

Draw a pie chart

None

What does a pie chart represent?

Topic: Graphical Representation of Data

Deselect Answer

The total number of observations

Frequency of each class

Proportions of data in different categories

Continuous data

None

What is represented on the y-axis in a bar graph?

Topic: Graphical Representation of Data

Deselect Answer

Categories

Time

Data values or frequency

Units

None

How many classes should a frequency table typically have for better readability?

Topic: Organizing Data

Deselect Answer

Between 5 and 15

Only 2

Between 20 and 25

Any number

None

What is the "mean" of a dataset?

Topic: Measures of Central Tendency

Deselect Answer

The middle value of the dataset

The most frequently occurring value

The range of the data

The sum of all observations divided by the number of observations

None

Which type of graph is used to represent continuous data?

Topic: Graphical Representation of Data

Deselect Answer

Histogram

Bar graph

Pie chart

Line graph

None

10.

What is the mode of the dataset $2, 4, 4, 5, 6$?

Topic: Measures of Central Tendency

Deselect Answer

$4$

$5$

$6$

$2$

None

11.

Which of the following is NOT true for a pie chart?

Topic: Graphical Representation of Data

Deselect Answer

It shows data as parts of a whole.

The total of all sectors equals $100%$.

It is suitable for comparing large amounts of data.

Each sector represents a category.

None

12.

The median of $4, 7, 1, 9, 5$ is:

Topic: Measures of Central Tendency

Deselect Answer

$5$

$6$

$7$

$4$

None

13.

If the mean of five numbers is $8$, what is their total sum?

Topic: Measures of Central Tendency

Deselect Answer

$8$

$40$

$48$

$32$

None

14.

The probability of an impossible event is:

Topic: Probability

Deselect Answer

$1$

$0.5$

$0$

$-1$

None

15.

Which of the following is NOT a measure of central tendency?

Topic: Measures of Central Tendency

Deselect Answer

Mean

Mode

Median

Range

None

16.

What is the probability of getting a number greater than $4$ when rolling a fair six-sided die?

Topic: Probability

Deselect Answer

$\dfrac{1}{2}$

$\dfrac{1}{3}$

$\dfrac{2}{3}$

$\dfrac{1}{6}$

None

17.

If the mode of a dataset is $10$, it means:

Topic: Measures of Central Tendency

Deselect Answer

The sum of all data points is $10$.

$10$ is the average of the data.

$10$ occurs most frequently in the dataset.

The range of the data is $10$.

None

18.

For the data $3, 7, 3, 9, 3$, the mode is:

Topic: Measures of Central Tendency

Deselect Answer

$3$

$7$

$9$

$6$

None

19.

What happens to the mean if you add $5$ to every value in the dataset?

Topic: Measures of Central Tendency

Deselect Answer

It remains unchanged.

It decreases by $5$.

It increases by $5$.

It doubles.

None

20.

Which graph would you use to represent the marks of students in a class across five subjects?

Topic: Graphical Representation of Data

Deselect Answer

Line graph

Bar graph

Histogram

Pie chart

None

21.

What is the probability of rolling an even number on a fair six-sided die?

Topic: Probability

Deselect Answer

$\dfrac{1}{6}$

$\dfrac{1}{2}$

$\dfrac{1}{3}$

$1$

None

22.

What is the probability of randomly selecting an ace from a standard deck of 52 cards?

Topic: Probability

Deselect Answer

$\dfrac{1}{13}$

$\dfrac{4}{52}$

$\dfrac{1}{52}$

$\dfrac{4}{13}$

None

23.

In a bag containing 4 red balls and 6 blue balls, the probability of randomly picking a blue ball is:

Topic: Probability

Deselect Answer

$\dfrac{2}{5}$

$\dfrac{3}{5}$

$\dfrac{1}{2}$

$\dfrac{1}{6}$

None

24.

In a histogram, the bars are:

Topic: Graphical Representation of Data

Deselect Answer

Separated

Connected with gaps

Connected without gaps

Of unequal widths

None

25.

What is the mode of the dataset $12, 15, 14, 15, 18$?

Topic: Measures of Central Tendency

Deselect Answer

$12$

$15$

$14$

$18$

None

26.

The mean of $4, 6, 8, 10, 12$ is:

Topic: Measures of Central Tendency

Deselect Answer

$8$

$9$

$10$

$7$

None

27.

The median of a dataset is:

Topic: Measures of Central Tendency

Deselect Answer

The mean of the data

The middle value when data is arranged in order

The most frequently occurring value

The difference between maximum and minimum values

None

28.

Which graph is most suitable for representing trends over time?

Topic: Graphical Representation of Data

Deselect Answer

Bar graph

Line graph

Histogram

Pie chart

None

29.

What is the range of the dataset $2, 8, 5, 10, 7$?

Topic: Measures of Central Tendency

Deselect Answer

$6$

$8$

$10$

$9$

None

30.

What is the probability of getting a head when tossing a coin?

Topic: Probability

Deselect Answer

$0$

$0.5$

$1$

$2$

None

1 out of 30

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Class 8 Quiz Level 1 (Easy) – Data Handling

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