7th Grade Math Unit 8: Statistics (MoCT)

Front

What is the mean in statistics?

Back

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

Front

What is the median in statistics?

Back

The median is the middle value in a data set when the numbers are arranged in order. If there is an even number of values, the median is 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, which can skew the results of statistical measures like the mean.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers in the data set together and then divide by the total number of values.

Front

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

Back

To find the median, arrange the values in order and select the middle value.

Front

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

Back

To find the median, arrange the values in order and calculate the average of the two middle values.

Front

What is the mode in statistics?

Back

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

Front

Why is the median often preferred over the mean in data sets with outliers?

Back

The median is less affected by outliers and provides a better representation of the central tendency in skewed distributions.

Front

What is a measure of central tendency?

Back

A measure of central tendency is a statistical measure that identifies a single value as representative of an entire data set, commonly the mean, median, or mode.

Front

How can you determine if the mean and median are equal?

Back

If the data set is symmetrical, the mean and median will be equal. In skewed distributions, they will differ.