Statistics

Front

What is the mean of a data set?

Back

The mean is the average of a data set, calculated by adding all the numbers together and dividing by the count of numbers.

Front

Calculate the mean for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

Back

7.44

Front

What is the median of a data set?

Back

The median is the middle value when a data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

Calculate the median for the data set: 6, 7, 12, 8, 4, 7, 8, 8, 7

Back

7

Front

What is the mode of a data set?

Back

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

Front

Calculate the mode for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

Back

7 and 8

Front

What is a convenience sample?

Back

A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easy to reach.

Front

What is a self-selected sample?

Back

A self-selected sample is a type of sampling where individuals volunteer to participate, often leading to bias.

Front

What is a random sample?

Back

A random sample is a sample that is selected randomly from a population, giving each individual an equal chance of being chosen.

Front

What is a systematic sample?

Back

A systematic sample is a type of sampling where you select every nth individual from a list or sequence.