Data & Statistics Review

Front

What is the mean in statistics?

Back

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

Front

How do you calculate the mean of a data set?

Back

Add all the numbers in the data set together and divide by the total number of values.

Front

What is the mode in statistics?

Back

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

Front

How do you find the mode of a data set?

Back

Identify the number that occurs most often in the data set.

Front

What is the median in statistics?

Back

The median is the middle value of a data set when the numbers are arranged in order.

Front

How do you find the median of a data set with an odd number of values?

Back

Arrange the numbers in order and select the middle number.

Front

How do you find the median of a data set with an even number of values?

Back

Arrange the numbers in order and calculate the average of the two middle numbers.

Front

What is a box-and-whisker plot?

Back

A box-and-whisker plot is a graphical representation of a data set that shows the minimum, first quartile, median, third quartile, and maximum.

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.