Statistics Review

Front

What is the mode in a set of numbers?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order and identify the middle value. If there is an even number of values, average the two middle numbers.

Front

What does it mean if a histogram is skewed right?

Back

A right-skewed histogram has a longer tail on the right side, indicating that most data points are concentrated on the left.

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the smallest value from the largest value in the data set.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within certain ranges.

Front

What is the difference between mean and median?

Back

The mean is the average of all numbers, while the median is the middle value when numbers are arranged in order.

Front

How can you determine how many students scored within a specific range?

Back

Count the number of data points that fall within the specified range.

Front

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

Back

If a data set has no mode, it means that no number appears more than once.

Front

What is the purpose of using statistics?

Back

Statistics help us summarize, analyze, and interpret data to make informed decisions.

Front

How do you interpret the shape of a data distribution?

Back

The shape of a data distribution can indicate patterns, such as normal distribution, skewness, or outliers.