Mean Median Mode

Front

What is the definition of 'Mean' in statistics?

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 definition of 'Median' in statistics?

Back

The median is the middle value in a list of numbers sorted in ascending or descending order. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What is the definition of 'Mode' in statistics?

Back

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

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, sum all the numbers in the set and then divide by the total count of numbers.

Front

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

Back

The mode is 2, as it appears most frequently.

Front

If a data set has no repeating numbers, what can be said about its mode?

Back

The data set has no mode, as there is no number that appears more than once.

Front

What is the median of the following set of numbers: 3, 1, 4, 2?

Back

First, sort the numbers: 1, 2, 3, 4. The median is the average of the two middle numbers (2 and 3), which is 2.5.

Front

In a data set of 5 numbers, if the mean is 10, what is the total sum of the numbers?

Back

The total sum is 50, calculated by multiplying the mean (10) by the number of values (5).

Front

What is the relationship between mean, median, and mode in a normal distribution?

Back

In a normal distribution, the mean, median, and mode are all equal.

Front

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

Back

Sort the data set and select the middle value as the median.