Intro to Stats

Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Which research method is most appropriate?

• biased study

• census

• experiment

• observational study

Tags

CCSS.HSS.IC.B.3

Ghala wanted to know what the most popular book was in the whole school, so she asked everybody in 11th grade what their favorite book was. Which research method is most appropriate?

• Sample Survey

• Census

• Experiment

• Biased Sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A researcher stood at a school parking lot entrance to see if the color of a car is related to the driver not wearing a seat belt.

Which research method is most appropriate?

• Observational Study

• Experiment

• Census

• Correlation

Tags

CCSS.HSS.IC.B.3

To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters.

This is an example of:

• Observational study

• Experimental Study

• Neither

• Both observational study and experimental study

Tags

CCSS.HSS.IC.B.3

A researcher is interested in learning how people use the neighborhood park. The researcher goes to the park daily for a month and records how many people are on the playground, how many are on the basketball court, how many are at the picnic tables, and how many are at the skate park. What type of study is this?

• Observational

• Experiment

• Survey

Tags

CCSS.HSS.IC.B.3

A researcher is interested in how caffeine affects sleep. He gets 100 randomly selected people spend the night in the lab. Before bed, he gives 50 people decaffeinated coffee and 50 people caffeinated coffee. He records the brain waves of each participant throughout the night. What kind of study is this?

• survey

• experiment

• observation

Tags

CCSS.HSS.IC.B.3

A researcher is interested in how people in his neighborhood feel about the 2nd amendment. He goes to a nearby mall, a movie theater, a grocery store, and a home improvement store and asks every 6th person he sees to answer 4 short questions. What kind of study is this?

• experiment

• observation

• survey

Tags

CCSS.HSS.IC.B.3

A study was done to answer the question, “What is the effect of different duration of light and dark on the growth of radish seedlings?” Three similar growth chambers (plastic bags) were created in which 30 seeds randomly chosen from a package were placed in each chamber. One chamber was randomly selected and placed in 24 hours of light, another for 12 hours of light and 12 hours of darkness, and a third for 24 hours of darkness. After three days, researchers measured and recorded the lengths of radish seedlings for the germinating seeds.

What type of study is this?

• Experiment

• Sample survey

• Observational study

Tags

CCSS.HSS.IC.B.3

A study of 1500 people was conducted where subjects were randomly assigned test a new energy drink. People were asked to try the new energy drink or continue to drink their usual caffeinated beverage. They then looked at the energy levels of the participants to see if the new energy drink really did help the subjects to have more energy.

What type of study is this?

• Experiment

• Sample survey

• Observational study

Tags

CCSS.HSS.IC.B.3

A group of biologist want to study the eating habits of giraffe's in the wild. They found a group of giraffes and monitor them for 6 months.

What type of study is this?

• Experiment

• Sample survey

• Observational study

Tags

CCSS.HSS.IC.B.3