Alg IIb - Obj 77 Mean, Median, Mode of data sets

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 values together and dividing by the number of values.

Front

What is the definition of Median in statistics?

Back

The median is the middle value in a data set when the numbers are arranged in ascending or descending order.

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 data set?

Back

Add all the numbers in the data set and 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

Arrange the numbers in order and select the middle number.

Front

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

Back

Arrange the numbers in order and calculate the average of the two middle numbers.

Front

What is an Outlier in a data set?

Back

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

Front

How can you identify an Outlier?

Back

Outliers can be identified using methods such as the interquartile range (IQR) or by visual inspection of a box plot.

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

What does it mean if the Mean is greater than the Median?

Back

If the Mean is greater than the Median, the data set is likely skewed to the right (positively skewed).