Box plots, Frequency, and Histograms

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that shows the distribution through five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does the term 'frequency' mean in statistics?

Back

Frequency refers to the number of times a particular value or category occurs in a dataset.

Front

How do you find the median of a dataset?

Back

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

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data by showing the number of data points that fall within specified ranges (bins).

Front

What is the purpose of a lower quartile in a box plot?

Back

The lower quartile (Q1) represents the value below which 25% of the data falls, indicating the first quarter of the dataset.

Front

What is the maximum value in a dataset?

Back

The maximum value is the largest number in a dataset.

Front

How do you determine the interval with the greatest frequency in a histogram?

Back

To determine the interval with the greatest frequency, look for the tallest bar in the histogram, which represents the interval with the most data points.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1), representing the range of the middle 50% of the data.

Front

How do you calculate the mean of a dataset?

Back

To calculate the mean, add all the numbers in the dataset and divide by the total number of values.

Front

What does it mean if a box plot is skewed to the right?

Back

If a box plot is skewed to the right, it indicates that there are a few high values that are pulling the median and the upper quartile higher than the lower quartile.