1. A scientist takes a big bucket of water from a lake and counts how many species of bacteria, bugs, and other creepy crawlies he finds in the bucket. Identify the population, the sample, and the parameter in this situation.

2. A school takes a poll to find out what students want to eat at lunch. 70 students are randomly chosen to answer the poll questions. What are the population, the sample, and the parameter of this study?

3. Researchers conducted an experiment, to see if adding racing stripes to cars make them go faster. They had two sets of randomly selected carsthose with and those without racing stripesmake laps around the same track. The average times of the two groups are being compared. What null hypothesis should be used for the sampling distribution?

II. Identify if the following as Quantitative or Qualitative.

1. 250kg mass of cake. ________________________

2. The number of balloons in a store. ________________________

3. Type of sports in an Olympic ________________________

4. Color of Marbles ________________________

5. Type of pets a person own ________________________

III. Identify the following variable as either discrete of continuous.in this situation.

1. Number of paper clips. _________________________

2. Number of chairs in a classroom. _________________________

3. Colony of viruses _________________________

4. Average rate of contamination _________________________

IV. Identify the following as either Nominal or Ordinal or Ratio or Interval.

1. Length of time to fade ______________________

2. Weight of books in a shelf ______________________

3. Color of flowers ______________________

4. Swab Test ______________________

5. Population gender ______________________