Inferences from Samples

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

Tags

CCSS.HSS.IC.B.3

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

• True

• False

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Select all the reasons why random samples are preferred over other methods of getting a sample.

• If you select a random sample, you can determine how many people you want in the sample.

• A random sample is always the easiest way to select a sample from a population.

• A random sample is likely to give you a sample that is representative of the population.

• A random sample is a fair way to select a sample, because each person in the population has an equal chance of being selected.

Tags

CCSS.HSS.IC.B.3

Determine if the following study is biased.

You want to know your Lexington's favorite fast-food restaurant. You randomly ask 30 people their preference as they leave a McDonald's restaurant.

• Biased

• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

River Bluff High School has a student population of 3020. In a sample of 250 students, 170 of them were female athletes. Approximately how many students in the entire population should be female athletes?

• 170

• 205

• 2,054

• 2,770

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4