Samples and Making Predictions

Front

What is the entire group of objects or individuals considered for a survey?

Back

Population

Front

Why is a sample that only includes teachers not a good representation of student preferences?

Back

The sample didn't include students.

Front

If 7 out of 10 students at an assembly are carrying a backpack, how many out of 700 students can be expected to carry a backpack?

Back

490

Front

What is a method to obtain an unbiased, representative sample of students?

Back

Asking 10 random students from each homeroom.

Front

Which statement does not represent the data collected from a survey of 48 students about outdoor preferences?

Back

The students do not know what a Koi Fish is.

Front

What is a sample in the context of surveys?

Back

A sample is a subset of individuals selected from a larger population.

Front

What is the purpose of making predictions based on a sample?

Back

To estimate characteristics or preferences of the larger population.

Front

What is a random sample?

Back

A random sample is a selection of individuals from a population where each individual has an equal chance of being chosen.

Front

Why is it important to have a representative sample?

Back

A representative sample accurately reflects the characteristics of the population, leading to valid conclusions.

Front

What is bias in sampling?

Back

Bias occurs when certain individuals are more likely to be selected than others, leading to skewed results.