comparing mean and median

Front

What is the mean?

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

What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of an odd set of numbers?

Back

To find the median of an odd set of numbers, arrange the numbers in order and select the middle number.

Front

How do you find the median of an even set of numbers?

Back

To find the median of an even set of numbers, arrange the numbers in order and calculate the average of the two middle numbers.

Front

What is an outlier?

Back

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

Front

How do you identify an outlier in a data set?

Back

An outlier can be identified by looking for values that are much higher or lower than the rest of the data, often using statistical methods like the interquartile range.

Front

What is the relationship between mean and median in a skewed distribution?

Back

In a skewed distribution, the mean is pulled in the direction of the skew, while the median remains a better measure of central tendency.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

Front

If the data set is 1, 2, 3, 4, 5, what is the mean?

Back

The mean is 3, calculated as (1+2+3+4+5)/5.

Front

If the data set is 1, 2, 3, 4, 5, what is the median?

Back

The median is 3, as it is the middle value in the ordered set.