High School Statistics

Ms. Marianne wanted to know her students' opinions on the new schedule at school. So she randomly selected 2 students from each of her classes to survey.
Assuming that all of her classes are roughly the same size, this is a form of:

• Convenience Sampling
• Simple Random Sampling
• Stratified Sampling
• Cluster Sampling

Ms. Marianne wanted to know students' opinion on the new schedule at school. She places all of her students' names in a container and randomly picks out 20 names. She surveys those students whose names have been chosen.
This is an example of:

• Convenience Sampling
• Systematic Sampling
• Simple Random Sampling
• Convenience Sampling

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block. 
This is an example of:

• Simple Random Sampling
• Stratified Sampling
• Cluster Sampling
• Systematic Sampling

Disneyland often surveys its guests as they exit a restaurant during their visit to assess the quality of their dining experience.
The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest. This is a form of:

• Simple Random Sampling
• Stratified Sampling
• Convenience Sampling
• Systematic Random Sampling

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "100" is the ______

• Sample Size
• Population Size
• Statistic
• Parameter

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "575" is the ______

• Sample Size
• Population Size
• Statistic
• Parameter

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "23%" is the ______

• Sample Size
• Population Size
• Statistic
• Parameter

Political webpages often allow their readers to rate whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given issue. This is a form of:

• Convenience Sampling
• Systematic Sampling
• Stratified Sampling
• Cluster Sampling

If every individual in a population has the same chance of being included in a sample, the sample is a/an _________ sample.

• biased
• systematic
• random
• stratified

Which of the following is an example of qualitative data?

• social security number
• number of keys on a key-chain
•                 height
•                   age