Stats Ch. 3 Collecting Data Review

What is a population?

• A tool used to collect statistical data

• Data collected from an entire population

• All the people or objects we are interested in studying

• A group chosen to actually collect data from

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What is a census?

• A tool used to collect statistical data
• A survey done on an entire population

• The factual information collected from a survey or other source 
• A group chosen from a population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What is a survey?

• process of collecting statistical data from a small group of a population

• Statistics collected from an entire population

• An element or feature that can vary

• A person chosen from a population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What is a sample?

• A tool used to collect statistical data

• Data collected from an entire population

• The factual information collected from a survey or other source

• A subgroup chosen from a population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Questioning students as they leave a university library, a researcher asks 358 students about their drinking habits.

This is what type of sample?

• simple random sample

• convenience sample

• voluntary response sample

• experimental sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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

Tags

CCSS.HSS.IC.B.3

A/an __________________ is a fake treatment given to the Control Group so that its members can't figure out that they're in the Control Group.

• placebo
• survey
• dummy variable
• false positive

Tags

CCSS.HSS.IC.B.3

Which of the following is a key distinction between well designed experiments and observational studies?

• More subjects are available for experiments than for observational studies.

• Ethical constraints prevent large-scale observational studies.

• Experiments are less costly to conduct than observational studies.

• An experiment can show a direct cause-and-effect relationship, an observational study cannot.

Tags

CCSS.HSS.IC.B.3

You want to see if students who have a 4.0 grade point average study more than those who do not. What type of study is this?

• experiment

• observational study

Tags

CCSS.HSS.IC.B.3

Mrs. Boyd wants to find the average height of all her students in her classes. She decides to use the first 5 people who walk in the door. Is this a good representative sample?

• Yes

• No

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1