Test A Mean, Median, Mode, Range, Outlier

Front

What is the mean of a data set?

Back

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

Front

How do you find the median of a data set?

Back

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

Front

What is the mode of a data set?

Back

The mode is the number that appears most frequently in a data set. A data set may have one mode, more than one mode, or no mode at all.

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the smallest number in the data set from the largest number.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly different from the other values in a data set, often much higher or lower than the rest.

Front

How does an outlier affect the mean of a data set?

Back

An outlier can skew the mean, making it higher or lower than it would be without the outlier.

Front

What is the formula for calculating the mean absolute deviation?

Back

Mean Absolute Deviation (MAD) = (Sum of absolute deviations from the mean) / (Number of data points).

Front

If the data set is 1, 2, 2, 3, 4, what is the mode?

Back

The mode is 2, as it appears most frequently.

Front

For the data set 10, 20, 30, 40, what is the range?

Back

The range is 40 - 10 = 30.

Front

In the data set 5, 7, 8, 9, 10, what is the median?

Back

The median is 8, as it is the middle number.