1. What are the four different types of quantitative data? Briefly explain each with examples.

1. What are the main considerations in research design?

1. Sampling is an important component in research design? Discuss different approaches of sampling in detail.

1. What is an experimental design? Do you agree with the statement "Correlation does not mean causation"? If yes explain the reason with example.

1. Write down the steps to do the experimental study.

1. What is the importance of survey in Quantitative research and how it can be used to collect the data?

1. Discuss the ways in which the survey questions can be designed.

1. What is the difference between mean, median and mode?

1. Discuss when to use mean, median or mode in research and what are their significance?

1. Levels of Measurement of Data Types- For the examples below, identify the data types (nominal, ordinal, interval, or ratio) for each of the variables.
   1. Job approval rating of the president (strongly approve, approve, disapprove, strongly disapprove)
   2. State of residence of presidential candidates
   3. The number of political parties participating in national elections in a sample of countries
   4. Research subjects' scores on an IQ Test
   5. Whether a parliamentary candidate is an incumbent or a challenger
   6. The amount of money raised by the Liberal Party National committee during the 2010 election campaign
   7. Populations of countries categorized as less than 20 million, 20 million to 50 million, more than 50 million
   8. The percentage of seats held by the Greens in state legislative assembly from 1980-2010
   9. Whether a country has a federal or unitary system of government
   10. Level of education obtained by survey respondents (less than high school, high school, some college, college, more than college)

1. For the following data sets, perform calculations of the Mean, Median and Mode.
   1. A football fan records how many goals his team scored in their last 15 football matches. Here are the results: 2, 3, 0, 0, 1, 3, 4, 2, 5, 0, 1, 1, 2, 1, 1
   2. The weekly salaries of six employees at McDonalds are $140, $220, $90, $180, $140, $200.

1. The following questions are on understanding descriptive statistics-
   1. In what way does the median represent the middle of the distribution?
   2. In what way is the mean the balancing point of a distribution? Briefly discuss what is the research methodology? What are the main questions that are answered in the research methodology?