Unit 10 Part 1 Review

Front

What is convenience sampling?

Back

A sampling method where the sample is taken from a group that is easily accessible, rather than randomly selected from the entire population.

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, it is the average of the two middle numbers.

Front

What is the mode in a data set?

Back

The mode is the number that appears most frequently in a data set.

Front

What does it mean for a sample to be representative of the population?

Back

It means that the sample accurately reflects the characteristics of the larger group from which it is drawn.

Front

How do you calculate the mean of a set of numbers?

Back

Add all the numbers together and divide by the total number of items.

Front

What is a simple random sample?

Back

A sampling method where every member of the population has an equal chance of being selected.

Front

What is systematic random sampling?

Back

A sampling method where you select every nth member of the population after a random starting point.

Front

What is voluntary sampling?

Back

A sampling method where individuals choose to participate, often leading to bias.

Front

What is the range in a data set?

Back

The range is the difference between the highest and lowest values in the data set.

Front

What is the importance of sample size in statistics?

Back

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