Statistics Review

Front

What is the definition of statistics?

Back

Statistics is the study of collecting, analyzing, interpreting, presenting, and organizing data.

Front

What is a data set?

Back

A data set is a collection of related data points or values that can be analyzed.

Front

What does the term 'mean' refer to in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the values and dividing by the number of values.

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What is a mode?

Back

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

Front

What is a range in statistics?

Back

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

Front

What are quartiles?

Back

Quartiles are values that divide a data set into four equal parts.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3), representing the middle 50% of the data.

Front

How do you find the first quartile (Q1)?

Back

Q1 is the median of the lower half of the data set.

Front

How do you find the third quartile (Q3)?

Back

Q3 is the median of the upper half of the data set.