Flashcard: Intro to Statistics

Front

What is the mode in a data set?

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

To calculate the mean, add all the values together and divide by the number of values.

Front

What is the median of a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What is the range of a data set?

Back

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

Front

If the mode score on a test is 90, what does that indicate?

Back

It indicates that more students received a score of 90 than any other score.

Front

What is the average number of cavities for the patients: 1, 0, 1, 5, 0, 3, 4?

Back

The average is 2.

Front

To find the average of a set of values, you divide by what?

Back

You divide by the number of values included in the set.

Front

What is the mean score of the following test scores: 76, 85, 97, 82?

Back

The mean score is 85.

Front

Which number is NOT the mean, median, or range of the data set 4, 3, 15, 11, 3, 8, 7, 5?

Back

The number 11 is NOT the mean, median, or range.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.