1. Time it takes to run a marathon is an example of:
2. Nominal-level of measurement
3. Ordinal-level of measurement
4. Interval-level of measurement
5. Ratio-level of measurement

1. Times required to complete a chess game is an example of:
2. Continuous variable
3. Discrete variable
4. Random variable
5. Qualitative variable
6. Weights of lobsters in a tank in a restaurant is an example of:
7. Discrete statistics
8. Inferential statistics
9. Qualitative variable
10. Quantitative variable

1. People are asked to phone in their response to a survey question. What sampling method is used?
2. Systematic
3. Cluster
4. Random
5. Stratified
6. A person stands at the entrance of AUST and checks the hair color of students.

This is an example of:

1. An observational study
2. Stratified sampling
3. An experimental study
4. Cluster sampling
5. (10pts - 2pts each)Answer by True or False:
6. _____In a survey of 1000 adults, 34% said that they posted notes on social media websites. This is an example of inferential statistics.
7. ______ Every seventh customer entering a shopping mall is asked to select her or his favorite store is an example of discrete variable.
8. ______ Number of bananas in a bunch at several local supermarkets is an example of nominal level of measurement.
9. ______ Different vitamins taken is an example of quantitative variable.
10. ______ Researchers stated that the shape of a person's ears is related to the person's

aggression. This is an example of inferential statistics.

III. (45 pts - 9 pts each)The number of visitors to the Railroad Museum during 24 randomly selected hours is shown here.

67	62	38	73	34	43	72	35
53	55	58	63	47	42	51	62
32	29	47	62	29	38	36	41

1. Construct a frequency distribution using 5 classes. Show how you calculated the class width.

1. Complete the table.

Class limits	Class boundaries	f	Cf	Xm	Rf	% f
Total		40

1. Find the modal class.

1. Draw the relative frequency histogram. Comment on the distribution.

1. Construct Ogive.

1. Construct the percentage frequency polygon

1. (25 pts)The data show the number of calories per ounce in selected types of nuts.

Types	Calories
Peanuts	160
Almonds	170
Macadamia	200
Pecans	190
Cashews	160

1. (15 pts) Construct the frequency Bar Chart.

1. (10 pts) Construct Pie Chart.