Inferences Review

Graham wants to find out the most popular football team at a game between the home team and the visiting team.  Which of the following methods will give him the most accurate results?

• a.  Surveying the cheerleaders for the home team
• a.  Surveying people wearing hats for the visiting team
• a.  Surveying a group of people standing in line for tickets
• a.  Surveying people who do not live in the home team’s city

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The table shows the results of a survey of 200 people attending a hockey game.
The attendance for the hockey game is about 25,000 visitors each game.  Based on the table, how many people out of 25,000 could be expected to buy a pennant?

• 1,375
• 1,650
• 2,750
• 3,850

Tags

CCSS.6.RP.A.3B

A movie theater kept of the attendance on Fridays and Saturdays.  The results are shown in the box plots below.

• The attendance on Friday and the attendance on Saturday have the same median and interquartile range.
• The attendance on Friday has a greater median and a greater interquartile range than attendance on Saturday.
• The attendance on Friday has a greater interquartile range than attendance on Saturday, but both data sets have the same median.
• The attendance on Friday has a greater median than attendance on Saturday, but both data sets have the same interquartile range

Ms. Hernandez determined that 60% of students in her classes brought an umbrella to school when the weather forcast predicted rain. If she has a total of 150 students, which statement does NOT represent Ms. Hernandez's data?

• On days when rain is forecasted, less than 2/5 of students bring an umbrella to school
• On days when rain is forecasted, 90 of her students bring an umbrella to school
• On days when rain is forecasted, more than 1/2 of students bring an umbrella to school
• On days when rain is forecasted, 60 off her students bring an umbrella to school

Moira surveyed 25 of her classmates to dins out how many emails they received. Which display would give the most information about the data?

• box and whisker plot
• circle graph
• histogram
• bar graoh

An owner of a restaurant wants to conduct a survey about possible menu changes. Which of the following sample methods would produce  valid sample?

• survey every fifth person entering the mall
• survey five of his friends
• survey every fifth person eating at the owner's restaurant
• survey every fifth person registered at the restaurant's website

A sample that involves only those who want to participate is called a 

• Simple Random Sample
• Systematic Random Sample
• Convenient Sample
• Voluntary Sample

A sample that consists of members of a population that are easily assessed.

• Simple Random Sample
• Systematic Random Sample
• Convenient Sample
• Voluntary Sample

What type of sample is the following example:
Each student's name is written on a piece of paper. The names are placed in a bowl and names are picked without looking. 

• Simple Random Sample
• Systematic Random Sample
• Convenient Sample
• Voluntary Sample

What type of sample is the following example:
Every 20th person is chosen from an alphabetical list of all students attending Pinckneyville Middle School. 

• Simple Random Sample
• Systematic Random Sample
• Convenient Sample
• Voluntary Sample