Reference no: EM13586655

1. Determine if this is an example of probability or statistics: The average cost of groceries has risen by 4.2% in the last year.

2. Determine if this data is qualitative or quantitative: Home value

3. Determine if this study is experimental or observational: Researchers monitor the health of smokers and non-smokers.

4. Construct a grouped frequency distribution for the data given below:

92   93   86   81   85   81   86   88   89   93  
83   92   81   93   92   85   93   82   95   86

5. Determine if this is an example of a variable or a parameter: 79.6% of Americans own at least one vehicle.

6. Determine if this statistical study is descriptive or inferential: A study finds that 18% of consumers prefer brand A to brand B

7. Identify the sampling technique used to obtain this sample: A person throws a phone book into the air five times; each time, he selects the tenth number on the page to which it opens.

8. In your own line of work, give one example of a discrete and one example of a continuous random variable, and describe why each is continuous or discrete.