Summary Statistics Practice

Front

What is a skewed left distribution?

Back

A skewed left distribution, also known as negatively skewed, is a distribution where the tail on the left side is longer or fatter than the right side. This indicates that the majority of the data points are concentrated on the right.

Front

How does the mean compare to the median in a skewed left distribution?

Back

In a skewed left distribution, the mean is less than the median.

Front

What is the formula to calculate the mean of a data set?

Back

The mean is calculated by summing all the values in the data set and dividing by the number of values.

Front

What is a skewed right distribution?

Back

A skewed right distribution, also known as positively skewed, is a distribution where the tail on the right side is longer or fatter than the left side. This indicates that the majority of the data points are concentrated on the left.

Front

How does the mean compare to the median in a skewed right distribution?

Back

In a skewed right distribution, the mean is greater than the median.

Front

What is the median of a data set?

Back

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

Front

What is the significance of the mean in statistics?

Back

The mean is a measure of central tendency that provides an average value of a data set, which helps summarize the data.

Front

What does it mean if a distribution is symmetric?

Back

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

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in a data set.

Front

What is the purpose of using a stapplet in statistics?

Back

A stapplet is an interactive tool used to visualize and analyze statistical data, helping users to compute statistics like mean, median, and standard deviation.