Lecture 1 Review

Interview the first 30 students who enter the school in the morning. 

• simple random
• voluntary response
• systematic
• convenience

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. 

• systematic
• random sample
• convenience
• volunteer response

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.MD.B.6

Why do we randomly select our samples?

• to increase bias
• to reduce bias
• so we don't get the same answers from everyone
• because it's easier

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.

• Simple Random
• Systematic Random
• voluntary response
• convenience

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Randomly selecting 10 students from each year group in a school is an example of...

• Simple random sampling

• Stratified sampling

• Systematic sampling

• Quota sampling

Randomly selecting 3 classes from a school and then investigating these classes further is an example of...

• Simple random sampling

• Cluster sampling

• Systematic sampling

• Stratified sampling

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The number of orange Skittles in a bag. 

• Discrete
• Continuous

Tags

CCSS.HSF.IF.A.3

The number of suitcases lost by airlines. 

• Discrete
• Continuous

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

Adam earns $10 for each car he washes.

• Discrete
• Continuous

Tags

CCSS.HSF-LE.A.1B

Graph of the growth of a plant for the next 30 days. 

• Discrete
• Continuous

Tags

CCSS.6.EE.C.9

CCSS.6.SP.B.4