Bihar School Examination Board (BSEB) Class 8 Mathematics: Data Handling

Instructions. Answer all questions. Fill exactly one bubble per question on the OMR sheet.

1. Data Handling

   1.

   Which of the following is an example of secondary data?

   1. (A)

      Measurements taken by you using a measuring tape.

   2. (B)

      Observations made directly by you in an experiment.

   3. (C)

      Data collected from a survey conducted by yourself.

   4. (D)

      Data obtained from a government census report.

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   Answer: (D)

   Data obtained from a government census report.

   Secondary data is data that has been collected by someone else and is available for others to use, such as a government census report.

   Data Handling · Easy

2. 2.

   The number of times a particular observation occurs in a given data is called its:

   1. (A)

      Mean

   2. (B)

      Median

   3. (C)

      Range

   4. (D)

      Frequency

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   Answer: (D)

   Frequency

   The frequency of an observation is the count of how many times it appears in a dataset.

   Data Handling · Easy

3. 3.

   In a histogram, the width of the bars represents:

   1. (A)

      Number of observations

   2. (B)

      Class interval

   3. (C)

      Frequency

   4. (D)

      Data values

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   Answer: (B)

   Class interval

   In a histogram, the width of the bars is uniform and represents the class interval, while the height represents the frequency.

   Data Handling · Medium

4. 4.

   A pie chart is used to represent data where the total sum of all components is equal to:

   1. (A)

      180 degrees

   2. (B)

      The number of categories

   3. (C)

      360 degrees

   4. (D)

      100%

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   Answer: (C)

   360 degrees

   A pie chart represents parts of a whole, and the entire circle corresponds to 360 degrees, representing the total sum of all components.

   Data Handling · Medium

5. 5.

   If a die is rolled once, what is the probability of getting an even number?

   1. (A)

      $1/6$

   2. (B)

      $1/2$

   3. (C)

      $2/3$

   4. (D)

      $1/3$

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   Answer: (B)

   $1/2$

   When a die is rolled, there are 6 possible outcomes (1, 2, 3, 4, 5, 6). The even numbers are 2, 4, 6 (3 outcomes). So, the probability is $3/6 = 1/2$.

   Data Handling · Hard

— End of the paper · updated 14 October 2026 —