Inferences

• 13

• 18

• 32

• 27

• 15

• 7

• 17

• 12

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.
• B. Biased sample.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

3. A public library asked every 10th person who entered to name the type of book they were getting.

• A. Biased
• B. Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:

• Asking all the students in the hot lunch line.
• Asking 10 random students from each homeroom.
• Asking every other student who gets off a school bus.
• Asking all the 10th graders.

Tags

CCSS.6.SP.A.1

Determine the type of sampling used in the following scenario: Divide students into freshmen/sophomores and juniors/seniors and then conduct a survey about the amount of time spent studying.

• Systematic

• Simple Random

• Cluster

• Stratified

Tags

CCSS.HSS.IC.B.3

Determine the type of sampling used in the following scenario: Farmer Joe's apple tree farm is set up in 100 rows. He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm. This is _____________ sampling.

• Self Select

• Stratified

• Convience

• Systematic

Determine the type of sampling used in the following scenario: To study the amount of time students spend doing homework each day, use a random number generator to select 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors to survey.

• Convenience Sample

• Self Select Random Sample

• Stratified Random Sample

• Systematic Sample

Calculate the median for the following set of scores: 45, 69, 69, 87, 88, 92, 99, 100

• 87
• 55
• 87.5
• 99

Tags

CCSS.7.EE.B.3