Biased, Unbiased, Box Plots

Match the following ...

• Not valid - Unfair sample

• Subject this assignment is from

• Valid - fair random sample

• Biased Sample

• Math

• Unbiased Sample

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

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

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

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?

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

What is the median?

• 62
• 58
• 66
• 60

Tags

CCSS.6.SP.B.5C

What is the interquartile range of these scores?

• 50

• 70

• 40

• 30

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the range of homework assignments for class 2?

(a)  

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

The box-and-whisker plots shown below represent the salaries of employees at two different

companies.

What is the difference between the median salaries of the employees at the two companies?

• $0

• $500

• $1000

• $2000

Tags

CCSS.6.SP.B.4

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5