Measures of Data 705

Front

What is the mean in a data set?

Back

The mean is the average of all data points, calculated by adding all values together and dividing by the number of values.

Front

What is the median in a data set?

Back

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

Front

What is the mode in a data set?

Back

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

Front

What is the range in a data set?

Back

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

Front

Why is the median a better measure than the mean in some cases?

Back

The median is not affected by outliers, making it a better measure of central tendency when data has extreme values.

Front

How do you find the mode of a data set?

Back

To find the mode, identify the number that appears most frequently in the data set.

Front

What does it mean if two data sets have the same median?

Back

It means that the middle value of both data sets is the same, indicating a similar central tendency.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly higher or lower than the other values in the data set.

Front

How do you calculate the range of a data set?

Back

To calculate the range, subtract the smallest value from the largest value in the data set.

Front

What is a comparative statement in data analysis?

Back

A comparative statement is a statement that compares two or more data sets or values.