Question: probability and statistic subject 1. Give two reasons why it is sometimes necessary to take a sample from a population. 2. State two ways of

probability and statistic subject

probability and statistic subject 1. Give two reasons why it is sometimes

1. Give two reasons why it is sometimes necessary to take a sample from a population. 2. State two ways of obtaining primary data. 3. State two sources of secondary data. 4. State two advantages and two disadvantages of the lottery system for taking a simple random sample from a population. 5. Briefly describe the difference between descriptive statistics and inferential statistics. 6. In your own words, explain and give an example of each of the following statistical terms: (a) population, (b) sample

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