Surveys (vs) Experiments

You are asked to give a survey and want to make groups. Which one is not appropriate.

• Stratified

• Cluster

• Blocking

You are asked to build an experiment and want to make groups. Which one(s) is/are not appropriate.

• Stratified

• Cluster

• Blocking

The population describes:

• The group of people being surveyed
• part of the group being surveyed
• the whole world
• the school

True or False: all samples lead to a good prediction about an entire population.

• True
• False

Mrs. Boyd wants to find the average height of all her students in her classes. She decides to use the first 5 people who walk in the door. Is this a good representative sample?

• Yes
• No

Unbiased sampling is:

• when you choose the group you think will represent the sample
• when any member of the population is equally likely to be chosen for the sample

Biased sampling is

• when you choose a population that is more likely to give you the result you want
• when you choose a group that is equally likely to be chosen

Devon polled 642 drivers late on a Friday night.
Is this a random sample of the drivers in the city?

• Yes because this represents all the drivers in the city well.
• No, because this only represents people late on a friday night

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

• 230 Teachers
• All Wicomico County Teachers
• Students
• Wicomico County Public Schools

Dylan wants to know how the students at his school rate the cafeteria.  He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey
• No, the basketball team has the smartest students
• Yes, because it's voluntary survey
• No, he should have asked the football team

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1