Statistics Review

Front

What is the MODE of a set of data?

Back

The mode is the most frequent score in a data set.

Front

How do you find the MEDIAN of a set of numbers?

Back

To find the median, arrange the numbers in order and identify the middle value.

Front

What is the definition of RANGE in statistics?

Back

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

Front

What is the INTERQUARTILE RANGE (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

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

Back

Add all the numbers together and divide by the total count of numbers.

Front

What does it mean if a data set is skewed?

Back

A skewed data set has a tail on one side, indicating that the data is not symmetrically distributed.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.

Front

What is a histogram?

Back

A histogram is a graphical representation of the frequency distribution of numerical data.

Front

What is a box plot?

Back

A box plot is a visual representation that shows the distribution of data based on a five-number summary: minimum, first quartile, median, third quartile, and maximum.

Front

What is a sample in statistics?

Back

A sample is a subset of a population used to represent the whole population.