STATISTICS FLASHCARD FOR MAAP REVIEW

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

What does it mean for a distribution to be symmetric?

Back

A symmetric distribution is one where the left side of the distribution is a mirror image of the right side. This means that the mean, median, and mode are all equal.

Front

How do you find the mean of a data set?

Back

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

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. Each bar represents a range of values.

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

What is the interquartile range (IQR)?

Back

The interquartile range is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set, representing the middle 50% of the data.

Front

What is a dot plot?

Back

A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

Front

What does it mean to summarize data?

Back

Summarizing data involves using statistical measures like mean, median, mode, and range to provide a quick overview of the data set.

Front

What is the mode of a data set?

Back

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

Front

How can you tell if a data set is skewed?

Back

A data set is skewed if one tail is longer or fatter than the other. If the tail on the right is longer, it is positively skewed; if the tail on the left is longer, it is negatively skewed.