Representative Sampling

Eric surveyed 402 employees at the company who worked in the marketing department.  Is this a random sample of the employees at the company in general?

• yes
• no

Tags

CCSS.HSS.IC.B.3

Josie threw a handful of identically shaped buttons into the air, then collected the 27 buttons that landed in a target on the floor.  Is this a random sample of the buttons?

• yes
• no

Tags

CCSS.HSS.IC.B.3

Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?

• yes
• no

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Henry surveyed the first 7 celebrities to arrive at the movie premiere.  Is this sample of celebrities likely to be biased?

• yes
• no

Tags

CCSS.7.SP.A.1

Suzie examined 7 flowers in each planter at the mall.  Each planter has an equal number of flowers.  Is this sample of the flowers at the mall likely to be representative?

• yes
• no

Tags

CCSS.7.SP.A.1

Patrick polled the every 10th person entering that attended the WCMS band concert.  Is this sample of the concert attendees likely to be representative?

• yes
• no

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Johnny pulls 6 marbles out of a bag without looking.  Is this a random sample or biased sample?

• Random
• Biased

Tags

CCSS.HSS.IC.B.3

Colton polled 22 people at the town senior center for the elderly.  Is this a random sample of the town residents?

• yes
• no

Tags

CCSS.HSS.IC.B.3

Karen surveyed every 10th 8th grader entering the school at Ware County Middle School.  Is this sample representative of all the students at Ware Middle?

• yes
• no

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

John polled the 2 customers who had been going to his barbershop the longest.  Is this sample of the customers likely to be representative?

• yes
• no

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1