Basics of Statistics SCDL PGDDS Exam Paper - 2

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Submitted By: Srishti on 19 April 2023 

Thanks Srishti for sharing and helping other fellow students.

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1. What is the definition of statistics?

a. The study of living organisms 

b. The study of how to program a computer 

c. The study of data and its analysis 

d. The study of the weather 

2. What is the difference between a population and a sample?

a. A population is a group of people, while a sample is a group of things 

b. A population is a group of things, while a sample is a group of people 

c. A population is a smaller group, while a sample is a larger group 

d. A population is a larger group, while a sample is a smaller group 

3. What is the first step in the data collection process?

a. Collecting data 

b. Defining the problem 

c. Analyzing data 

d. Reporting the results 

4. What is a nominal scale of measurement?

a. A scale that measures the order of data 

b. A scale that measures quantities 

c. A scale that measures categories 

d. A scale that measures intervals 

5. What is the difference between quantitative and qualitative data?

a. Quantitative data is numerical, while qualitative data is non-numerical 

b. Qualitative data is numerical, while quantitative data is non-numerical 

c. Quantitative data is ordinal, while qualitative data is nominal 

d. Qualitative data is ordinal, while quantitative data is nominal 

6. What is a histogram?

a. A graph that shows the relationship between two variables 

b. A graph that shows the distribution of data 

c. A graph that shows the mean, median, and mode 

d. A graph that shows the correlation between two variables 

7. What is the mean?

a. The middle value in a set of data 

b. The most common value in a set of data 

c. The sum of all values in a set of data divided by the number of values 

d. The range of values in a set of data 

8. What is the median?

a. The middle value in a set of data 

b. The most common value in a set of data 

c. The sum of all values in a set of data divided by the number of values 

d. The range of values in a set of data 

9. What is the mode?

a. The middle value in a set of data 

b. The most common value in a set of data 

c. The sum of all values in a set of data divided by the number of values 

d. The range of values in a set of data 

10. What is the range?

a. The middle value in a set of data 

b. The most common value in a set of data 

c. The sum of all values in a set of data divided by the number of values 

d. The difference between the largest and smallest values in a set of data 

11. What is the variance?

a. The difference between the largest and smallest values in a set of data 

b. The average distance of each data point from the mean 

c. The most common value in a set of data 

d. The middle value in a set of data 

12. What is the standard deviation?

a. The difference between the largest and smallest values in a set of data 

b. The average distance of each data point from the mean 

c. The most common value in a set of data 

d. The middle value in a set of data 

13. Which of the following is not a method of data presentation?

a. Tables

b. Graphs

c. Pie charts

d. Interviews

14. Which of the following is an example of ordinal data?

a. The temperature of a room

b. The height of a person

c. The grade on a test

d. The weight of a person

15. Which of the following is a measure of dispersion?

a. Standard deviation

b. Median

c. Mode

d. Mean

16. Which of the following is a measure of dispersion that is calculated by dividing the sum of the squared deviations from the mean by the number of observations?

a. Standard deviation

b. Range

c. Variance

d. Mean

17. What is the difference between a population and a sample in statistics?

a. A population refers to a group of individuals or objects, while a sample refers to a subset of the population.

b. A population refers to a subset of the sample, while a sample refers to the entire group of individuals or objects.

c. A population refers to the data collected from a sample, while a sample refers to the raw data.

d. A population and a sample are the same thing in statistics.

18. What is the purpose of data collection in statistics?

a. To draw conclusions and make decisions based on the data.

b. To manipulate the data to obtain the desired results.

c. To present the data in a visually appealing way.

d. To collect data for no particular reason.

19. Which of the following is NOT a type of measurement scale?

a. Nominal

b. Ordinal

c. Interval

d. Ratio

20. Which of the following is the best method for presenting quantitative data?

a. Bar chart

b. Line graph

c. Pie chart

d. Scatterplot