Statistics: Shape!

Front

What does it mean if a distribution is skewed right?

Back

A distribution is skewed right when the tail on the right side is longer or fatter than the left side, indicating that there are a few high values pulling the mean to the right.

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the graph are mirror images of each other, meaning the mean, median, and mode are all equal.

Front

Define an outlier in a data set.

Back

An outlier is a value that is significantly higher or lower than the other values in a data set, which can affect the overall analysis.

Front

What is a box plot?

Back

A box plot is a graphical representation of data that shows the median, quartiles, and potential outliers in a data set.

Front

What is the range in statistics?

Back

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

Front

What does it mean if a distribution is skewed left?

Back

A distribution is skewed left when the tail on the left side is longer or fatter than the right side, indicating that there are a few low values pulling the mean to the left.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data, showing how many data points fall within certain ranges.

Front

What is the mean of a data set?

Back

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

Front

What is the median in a data set?

Back

The median is the middle value of a data set when the values are arranged in order. If there is an even number of values, it is the average of the two middle values.

Front

What is the mode in a data set?

Back

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