Mean Median Mode Range IQR

Front

What is the mean of a set of numbers?

Back

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

Front

What is the median in a data set?

Back

The median is the middle number in a sorted list of numbers. 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 set can have one mode, more than one mode, or no mode at all.

Front

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

Back

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

Front

What does IQR stand for?

Back

IQR stands for Interquartile Range, which measures the spread of the middle 50% of a data set.

Front

How do you find the IQR?

Back

To find the IQR, subtract the first quartile (Q1) from the third quartile (Q3) of the data set.

Front

Can there be more than one mode in a data set?

Back

Yes, a data set can have multiple modes if two or more numbers appear with the same highest frequency.

Front

What is the first step in finding the median?

Back

The first step in finding the median is to arrange the numbers in ascending order.

Front

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

Back

The median is 8, as it is the middle number in the ordered set.

Front

What is the mode of the data set: 2, 3, 4, 4, 5?

Back

The mode is 4, as it appears most frequently.