## NPTEL Learning Analytics Tools Week 4 Assignment Answers 2024

1. Consider the following box plot. The box plot represents the distribution of marks in the mid-semester examination. What percentage of students obtained marks between 24-31?

- 50%
- 25%
- 75%
- 100%

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2. Which of the following is true Histogram?

- Only used for the numerical type of data
- Can be used for numerical, nominal or categorical types.
- Different bin sizes lead to different histograms
- Bin size should be equal

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3. In the figure below, what is the relation between the two variables represented on two axes?

- Linear
- Negative
- Positive
- Non-linear

Answer :-

4. When using a data visualization technique, which considerations are important?

- The information you want to convey
- The kind of data you have
- The personal opinion of the participants in your study
- The possible interpretation of your reader/audience

Answer :-

5. Which of the following statements are true for Box-plot?

- It can be drawn only for numerical data
- It can be drawn for numerical as well as categorical data.
- It shows min, max , median value for a given data set.
- It shows min, max, median as the mean value of the given data sets.
- It shows the outliers.

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6. Which of the following statements are correct

- Scatter plot can be plot only to show relationship between two variables
- Scatter plot can be drawn to show relationship between two or more than two variables
- Line chart show variation of variable only with time
- Line charts shows variation of a variable with any other parameters

Answer :-

7. In the below graph, what is the relation between the two variables?

- Linear
- Non-linear
- High positive (r = 1)
- Negative

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8. Match the following

- 1-B, 2-C, 3-A, 4-D
- 1-C, 2-D, 3-B, 4-A
- 1-D, 2-A, 3-C, 4-B
- 1-C, 2-D, 3-A, 4-B

Answer :-

From the box plot shown below, answer the questions Q9, and Q.10.

The box plot represents the distribution of Maths results in the mid-semester examination.

9. Find the interquartile range with the help of box plot

Answer :-

10. What percentage of students obtained marks between 30-80?

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