WEEK 1C(M7)

Front

What is a representative sample?

Back

A representative sample is a subset of a population that accurately reflects the characteristics of the larger group.

Front

What is a biased sample?

Back

A biased sample is a subset of a population that does not accurately reflect the characteristics of the larger group, leading to skewed results.

Front

How do you calculate the number of students who like a certain activity based on a survey?

Back

Multiply the total number of surveyed students by the fraction that likes the activity.

Front

If 4 out of 10 students like paper football, how many students like it in a survey of 800?

Back

320 students (800 * 4/10 = 320).

Front

What is the best method to obtain a representative sample?

Back

Random sampling, such as selecting every 3rd person, helps ensure that the sample reflects the population.

Front

What does it mean to catch, tag, and release fish in a study?

Back

This method helps estimate the population size by tracking how many tagged fish are recaptured.

Front

If you catch 25 fish and 5 are tagged, what is the estimated total fish in the pond?

Back

250 fish (if 5 out of 25 are tagged, then 50 tagged fish would suggest 250 total fish).

Front

What is the importance of sample size in surveys?

Back

A larger sample size generally leads to more accurate and reliable results.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values.

Front

What is a survey?

Back

A survey is a method of collecting data by asking people questions to gather information about their opinions or behaviors.