Class 8 Quiz Level 2 (Moderate) – Data Handling

Total questions: 20

How many classes are needed to construct a frequency distribution for the following data: $15, 17, 20, 21, 18, 22, 25, 16$, using a class interval of $5$?

Topic: Organizing Data

Deselect Answer

$4$

$5$

$2$

$6$

None

If a bag contains $5$ green, $7$ yellow, and $8$ blue balls, the probability of picking a yellow ball is:

Topic: Probability

Deselect Answer

$\dfrac{7}{20}$

$\dfrac{1}{20}$

$\dfrac{5}{20}$

$\dfrac{8}{20}$

None

The area of a sector in a pie chart representing $20%$ of the data is:

Topic: Graphical Representation of Data

Deselect Answer

$20^\circ$

$72^\circ$

$36^\circ$

$90^\circ$

None

For the data $3, 5, 7, 9$, the range is:

Topic: Measures of Central Tendency

Deselect Answer

$2$

$6$

$7$

$9$

None

A student scores $50$, $60$, $70$, $80$, and $90$ in five tests. What is the average score?

Topic: Measures of Central Tendency

Deselect Answer

$60$

$70$

$75$

$65$

None

A card is drawn from a standard deck of $52$ cards. What is the probability of getting a face card?

Topic: Probability

Deselect Answer

$\dfrac{3}{13}$

$\dfrac{1}{13}$

$\dfrac{4}{52}$

$\dfrac{1}{4}$

None

The mode of the data set $4, 6, 7, 4, 9, 4, 6$ is:

Topic: Measures of Central Tendency

Deselect Answer

$4$

$6$

$7$

$9$

None

The median of the dataset $3, 8, 10, 15, 20, 25, 30$ is:

Topic: Measures of Central Tendency

Deselect Answer

$10$

$15$

$20$

$25$

None

A survey of students revealed the following marks out of 10: $5, 7, 6, 5, 8, 5, 9, 6$. The frequency of the mark $5$ is:

Topic: Organizing Data

Deselect Answer

$2$

$3$

$1$

$4$

None

10.

A bag contains $5$ white, $3$ red, and $2$ black balls. What is the probability of picking a black ball?

Topic: Probability

Deselect Answer

$\dfrac{1}{10}$

$\dfrac{4}{10}$

$\dfrac{3}{10}$

$\dfrac{2}{10}$

None

11.

Which of the following is not a type of data representation?

Topic: Organizing Data

Deselect Answer

Bar graph

Histogram

Pie chart

Diagrammatic theorem

None

12.

A histogram is used to represent:

Topic: Graphical Representation of Data

Deselect Answer

Continuous data

Discrete data

Both continuous and discrete data

None of these

None

13.

In a bar graph, the width of the bars:

Topic: Graphical Representation of Data

Deselect Answer

Should be uniform

Can vary

Should increase with frequency

Should depend on the x-axis values

None

14.

A die is rolled twice. What is the probability of getting a sum of $7$ on the two dice?

Topic: Probability

Deselect Answer

$\dfrac{1}{12}$

$\dfrac{1}{6}$

$\dfrac{1}{9}$

$\dfrac{1}{36}$

None

15.

A coin is tossed twice. What is the probability of getting at least one tail?

Topic: Probability

Deselect Answer

$\dfrac{1}{2}$

$\dfrac{1}{4}$

$\dfrac{3}{4}$

$\dfrac{1}{8}$

None

16.

The probability of an event that is certain to happen is:

Topic: Probability

Deselect Answer

$1$

$0.5$

$0$

Cannot be determined

None

17.

A bag contains $5$ yellow, $3$ red, and $2$ blue balls. If a ball is drawn randomly, what is the probability of not getting a blue ball?

Topic: Probability

Deselect Answer

$\dfrac{4}{5}$

$\dfrac{2}{5}$

$\dfrac{3}{5}$

$\dfrac{1}{5}$

None

18.

A spinner has $8$ equal sectors numbered $1$ to $8$. What is the probability of spinning a number greater than $5$?

Topic: Probability

Deselect Answer

$\dfrac{1}{4}$

$\dfrac{3}{8}$

$\dfrac{1}{2}$

$\dfrac{5}{8}$

None

19.

A card is drawn randomly from a standard deck of $52$ cards. What is the probability of drawing a red card or a queen?

Topic: Probability

Deselect Answer

$\dfrac{1}{2}$

$\dfrac{7}{13}$

$\dfrac{15}{26}$

$\dfrac{13}{26}$

None

20.

A box contains $5$ defective and $15$ non-defective items. One item is selected randomly. What is the probability that it is defective?

Topic: Probability

Deselect Answer

$\dfrac{1}{3}$

$\dfrac{1}{4}$

$\dfrac{1}{5}$

$\dfrac{1}{2}$

None

1 out of 20

Time's up

Class 8 Quiz Level 2 (Moderate) – Data Handling

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