Mean, Median, Mode and Range

Front

What is the definition of range in a data set?

Back

The range is the difference between the largest and smallest number in the data set.

Front

How do you find the mode of a data set?

Back

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

Front

What is the mode of the following data set: 67, 74, 95, 98, 98, 99, 102?

Back

The mode is 98.

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What is the median of the following data set: 3, 5, 7, 4, 3, 1?

Back

The median is 3.5.

Front

What is the definition of mean in a data set?

Back

The mean is the average of all the numbers in the data set, calculated by dividing the sum of the numbers by the count of the numbers.

Front

How do you calculate the mean of the following data set: 28, 18, 19, 18, 17?

Back

To calculate the mean, add the numbers (28 + 18 + 19 + 18 + 17 = 100) and divide by the count of numbers (5). The mean is 20.

Front

What is the mode of the following data set: 0, 1, 1, 2, 3, 4?

Back

The mode is 1.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average, median is the middle value, and mode is the most frequently occurring value in a data set.

Front

How can the range be affected by outliers in a data set?

Back

Outliers can significantly increase the range by being much larger or smaller than the other values, thus affecting the difference between the largest and smallest numbers.