Sampling Techniques & Ways to Collect Data

What kind of sample technique is the following:

Selecting every 8th person in line for a water slide.

• Convenience Sampling

• Simple Random Sampling

• Systematic Sampling

• Sample

Farmer Joe separates his farm into 10 regions.  He then randomly selected 5 trees from each region to estimate the number of apples produced on his apple tree farm.  This is _____________ sampling.  

• Cluster
• Systematic
• Stratified
• Simple

A baker made a dozen donuts. He frosted one with maple frosting and the rest with chocolate frosting. Identify the Population.

• The maple donut

• The dozen donuts

• The chocolate donuts

The seniors at Kennedy High School are going to vote where the senior trip should be. The Teachers need 100 votes before they can make a final decision. Identify the population.

• Seniors at Kennedy High School

• Teachers at Kennedy High School

• 100 senior voters

Carlos wants to know the favorite sport of people at his school so he asks his baseball team.

• Biased

• Unbiased

A company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.

• Biased

• Unbiased

Determine if the question is random or biased. Is basketball your favorite sport?

• biased question

• random question

Determine if the question is random or biased. Do you eat the recommended number of servings of fruits and vegetables?

• biased question

• random question

One group of subjects was given an herbal supplement and another group was given a placebo. After one year, the number of illnesses each group had was compared.

• Observational Study

• Experiment

You want to compare the health of students who walk to school to the health of students who ride the bus

• experiment

• observational study