AP Stats Semester 1 Review

Interview every 10th student who enters the school in the morning.

• simple random

• voluntary response

• systematic

• convenience

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.RI.K.7

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

• systematic

• simple random sample

• convenience

• Self - selected (volunteer)

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.RI.K.7

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

Tags

CCSS.L.11-12.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.8.2D

CCSS.W.9-10.2D

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

• Simple Random Sample

• Stratified Random Sample

• Cluster Random Sample

• Systematic Random Sampling

Tags

CCSS.L.11-12.6

CCSS.L.8.6

CCSS.L.9-10.6

CCSS.W.11-12.2D

CCSS.W.9-10.2D

A teacher hands out an index card and asks ALL of her students to write down the following information: age, height (in inches), and what grade they are in.

Which of the following best describes her method of data collection?

• Census

• Simple Random Sample

• Cluster Random Sample

• Stratified Random Sample

Tags

CCSS.HSS.IC.B.3

A ___ is a large group that includes everything being studied.

• Sample
• Stratified Sampling Method
• Population
• Voluntary-Response

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?

• rolling a six-sided number cube 6 times
• rolling a six-sided number cube 20 times
• spinning a spinner with 4 equal sized sections 4 times
• choosing 1 marble in a bag of 20 different colored marbles

Tags

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Why do we want our experiments to have random elements in them?

• To reduce variability

• To increase variability

• To reduce bias

• To increase bias

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

A report in a medical journal notes that the risk of developing Alzheimer's disease among subjects who regularly opted to take Ibuprofen was about half the risk among those who did not.  Is this good evidence that Ibuprofen is effective in preventing Alzheimer's?

• Yes, because the study was a randomized, comparative experiment
• No, because the effect of Ibuprofen is confounded with the placebo effect
• No, because this is an observational study.  An experiment would be needed to confirm (or not confirm) the observed effect.
• Yes, because a 50% reduction can't hapen just by chance

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

CCSS.HSS.IC.B.6

CCSS.HSS.ID.C.9

This research method is a technique for ascertaining the self – reported attitudes or behaviors of a particular group, usually by questioning a representative, random sample of the group.

• Survey

• Observational

• Experiments

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4