Measures of Center & Spread

Front

What is the mode in a data set?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, sort the data from least to greatest and identify the middle number.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

Can a data set have more than one mode?

Back

Yes, a data set can have more than one mode if multiple values appear with the same highest frequency.

Front

What does it mean if a data set is skewed?

Back

A skewed data set has a tail on one side, indicating that the data is not symmetrically distributed.

Front

What is the mean of a data set?

Back

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

Front

What is the difference between mean and median?

Back

The mean is the average, while the median is the middle value when data is sorted.

Front

What is a measure of center?

Back

A measure of center is a statistic that represents the center point or typical value of a data set, such as mean, median, or mode.

Front

What is a measure of spread?

Back

A measure of spread indicates how much the data varies, such as range, variance, or standard deviation.

Front

If a new number is added to a data set, how can it affect the mean?

Back

Adding a new number can increase, decrease, or keep the mean the same, depending on the value of the new number.