Random Sampling

Front

What is Random Sampling?

Back

Random sampling is a technique used to select a subset of individuals from a larger population, where each individual has an equal chance of being chosen.

Tags

CCSS.HSS.IC.B.3

Front

What is a Biased Sample?

Back

A biased sample is a sample that does not accurately represent the population from which it is drawn, leading to skewed results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an Unbiased Sample?

Back

An unbiased sample is a sample that accurately represents the population, allowing for valid conclusions to be drawn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Why is Random Sampling important?

Back

Random sampling is important because it helps ensure that the sample reflects the diversity of the population, reducing bias in the results.

Tags

CCSS.HSS.IC.B.3

Front

Example of a Biased Sample: Surveying only math teachers about school rules.

Back

This is biased because it does not include teachers from other subjects, which may have different opinions.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Example of an Unbiased Sample: Picking names from a hat to survey students.

Back

This is unbiased because every student has an equal chance of being selected.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What can lead to a Biased Sample?

Back

Factors such as selection bias, non-random selection methods, or surveying only a specific group can lead to a biased sample.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Selection Bias?

Back

Selection bias occurs when the individuals included in a sample are not representative of the larger population.

Tags

CCSS.HSS.IC.B.3

Front

How can you avoid Bias in Sampling?

Back

To avoid bias, use random selection methods, ensure diversity in the sample, and avoid convenience sampling.

Tags

CCSS.HSS.IC.B.3

Front

What is Convenience Sampling?

Back

Convenience sampling is a non-random sampling method where individuals are selected based on their easy availability.

Tags

CCSS.HSS.IC.B.3