Random Samples (Mills)

According to a random telephone survey, 85% of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

• 85 adults
• 340 adults
• 500 adults
• 425 adults

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

What inference can you draw from this survey?

• I can infer that most students in this school like pizza.

• I can infer that very few students like hamburgers.

• I can infer that their favorite is corn dogs.

• I can infer that most students in this school like hamburgers.

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

What is the approximate sample size?

• The sample size are the total students surveyed, every 10th student.

• The sample size are the total number of students surveyed, 100.

• The sample size are the four types of food.

• The sample size are the total number of students surveyed, 193.

You want to study a random sample of 4 out of 24 students in your science class. Which method should you use?

• Assign each student a number and select 4 with a random number generator

• Select 4 students who sit by you

• Select 4 students whose names are 1st in the alphabet

• Select the 4 student who come into class 1st

What is the population of this survey?

• The population are the people who visit the L.A. Zoo.

• The population are the lions, monkeys, panda bears, and elephants.

• The population are 110 people.

• The population are only the monkeys.

The manager of a bookstore surveys people who buy mystery novels to see if the store should expand its hours.  What is the population?

• People who visit the bookstore.
• People who buy mystery novels.
• Residents of the town
• People who like to read.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Darrien surveys 60 of the actors in his theater class. He concludes that 8 out of 15 actors have previous acting experience. How many actors would you expect to have experience out of 30?

• 8 actors

• 16%

• 8%

• 16 actors

What is the median of the data?

• 105
• 106
• 104
• 110

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mode?

• 88%
• 89%
• 97%
• 91%

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5