EBook Problems EDA DataTypes
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(New page: == EBook Problems Set - Types of Data Problems== ===Problem 1=== Six Flaggs Magic Mountain has just built a brand new...)
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(New page: == EBook Problems Set - Types of Data Problems== ===Problem 1=== Six Flaggs Magic Mountain has just built a brand new...)
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Revision as of 06:17, 6 February 2009
Contents |
EBook Problems Set - Types of Data Problems
Problem 1
Six Flaggs Magic Mountain has just built a brand new roller coaster. In the first week, the ride became very popular. People are waiting for up to 4 hours for the ride. Management is getting concerned about how their customers are feeling about this. They survey every 20th person in the line, starting from a randomly selected person.
What kind of sample is this?
- Choose one answer.
- (a) convenience sample
- (b) systematic sample
- (c) stratified sample
- (d) multistage sample
Answer
Problem 2
For a certain project, you are tasked to measure the weights of everyone in a certain class. What sort of variable is the weight?
- Choose one answer.
- (a) Continuous
- (b) Discrete
Answer
Problem 3
The EPA took soil samples at 25 locations near a former nuclear waste dump and checked each for evidence of harmful radiation. They found no harmful levels of radiation. What is the population in this case?
- Choose one answer.
- (a) All soil in America
- (b) Every nuclear waste dump
- (c) Soil around a former nuclear waste dump
- (d) All soil with harmful levels of radiation
Answer
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- SOCR Home page: http://www.socr.ucla.edu
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