U9L1 - Intro. to Statistics

The average annual salary for 35 of a company's 1200 accountants is $68,000.

• parameter
• statistic

As of January 2007, 44% of the governors of the 50 states in the US are Republicans.

• parameter
• statistic

Tags

CCSS.HSS.IC.B.3

In a recent survey of 1503 adults in the United States, 53% said they use both a landline and a cell phone,

• parameter
• statistic

Tags

CCSS.HSS.IC.B.3

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A musician wanted to see what people who bought his last album thought about the songs. Which choice best represents a sample? .

• Every person who bought the album.

• A selection of people who didn't want to buy the album.

• 250 girls who bought the album

• A selection of 3,294 people who bought the album.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A researcher randomly assigned boys and girls to each of two groups. One group was assigned to watch a violent television program while the other group watched a nonviolent program. The children's behavior was then recorded for incidences of aggressive behavior. This research method is best characterized as...

• experimental

• Observation

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

• Experiment

Tags

CCSS.HSS.IC.B.3

What would be the population in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors
• all shoppers in the mall
• the shoppers who were asked their preferences

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What would be the sample in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors
• all shoppers in the mall
• the shoppers who were asked their preferences

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A gaming website wanted to find out which console its visitors owned.
Which choice best represents the population?

• Visitors to the 3DS section.
• All of the website visitors.
• Visitors to the PS4 section.
• Visitors who are on the website for more than 5 minutes.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1