Question

1. A. Classify whether the given situation belongs to the area of descriptive or inferential statistics.

1. Carbon monoxide is one of the major pollutants of smog.    

2. Frequency distribution of fasting serum cholesterol level ( mg/ dL) students.                 
3. Wearing seat belts increases the chance of survival in automobiles accidents.

4. The mean cholesterol level of patients with myocardial infraction.

         

5. 95 % of the population has height between 66 and 74 inches.    

    

         

Answer 1

Descriptive statistics uses the data to provide descriptions of population whereas Inferential statistics makes predictions about a population based on a sample of data taken from the population

Using above information we can classify following examples:

1.Carbon monoxide is one of the major pollutants of smog.    

- Descriptive statistics

2. Frequency distribution of fasting serum cholesterol level ( mg/ dL) students.                 

- inferential statistics (as we need to find out the chances using sample)

3. Wearing seat belts increases the chance of survival in automobiles accidents.

- inferential statistics (as we need to find out the chances using sample)

4. The mean cholesterol level of patients with myocardial infraction

- Descriptive statistics

5. 95 % of the population has height between 66 and 74 inches.

- Descriptive statistics