Sampling Statisitcs

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

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.A.2

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

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

A teacher brings to class a jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. One of the students draws 25 gumballs from the jar. 8 are red, 17 are green. Name the sampling method used in this survey.

• stratified sample
• systematic sample
• free sample
• simple random sample

A ___ is a small portion of the population used to gather data from.

• Systematic Sampling Method
• Sample
• Population
• Bias

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Marianne wanted to know students' opinion on the new schedule at school. So she randomly selected 2 students from each class during second period. 
This is a form of:

• Convenience Sampling
• Random Sampling
• Stratified Sampling
• Systematic Sampling

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Group businesses according to type: medical, retail, restaurant, hotel, other. Then select a random sample of 10 businesses from each type. 

• voluntary response
• random
• stratified
• systematic

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 selects the first five who raise their hands.

• Systematic

• Stratified

• Self Selected

• Random

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She puts the students in alphabetical order then picks the student in every 5th seat.

• Random

• Systematic

• Voluntary Response

• Stratified

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.  

• Random
• Stratified
• Voluntary-Response
• Systematic

Tags

CCSS.HSS.IC.B.3