Random Sampling

A school principal wants to know how teachers are liking the new rules she put in place. She surveys all the math and science teachers. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A high school is going to have a party for their graduating seniors. They want to serve food that most of the seniors like. They pick 25 random names from a hat and survey those students. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.6.SP.A.1

Casey surveyed the members of his soccer team to ask them what their favorite sport is. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

A school district wants to know if parents would prefer to get phone calls or emails from the schools. They survey the parents of all the seventh grade students enrolled in the district. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

Shelley wants to survey grocery shoppers about their favorite brands. She goes to the store at 8am and surveys the first 50 people. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

Green Valley Middle School conducted a survey of 125 random students asking them how much time they spend each night on homework. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

An airline wants to know if people prefer to check their luggage or carry it on. They ask every 10th person that walks into the airport. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased sample?

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Debbie surveyed all the students who ride the bus to school to find how long they take to get ready in the morning. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

A middle school surveyed random students to find out which elective the students want to take next year. The results are shown here. How many total students were surveyed?

• 20

• 40

• 14

• 6

Tags

CCSS.6.SP.B.5

Based on the results of this survey, which elective was least popular and should be canceled?

• Spanish

• Theater

• Art

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5