Histograms and stem-and-leaf plots

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 specified ranges (bins).

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a way that retains the original data values while showing the distribution. Each number is split into a 'stem' (the leading digit) and a 'leaf' (the trailing digit).

Front

How do you find the mean of a set of numbers?

Back

To find the mean, add all the numbers together and then divide by the total count of numbers.

Front

What is the median?

Back

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

Front

What is the mode?

Back

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

Front

How do you determine the range of a data set?

Back

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

Front

What does it mean to sort data?

Back

Sorting data means arranging it in a specific order, typically from least to greatest or vice versa.

Front

What is a bin in a histogram?

Back

A bin is a range of values that groups data points in a histogram, allowing for the visualization of frequency distribution.

Front

How can you identify the interval with the greatest frequency in a histogram?

Back

Look for the tallest bar in the histogram; the interval corresponding to that bar has the greatest frequency.

Front

What is the purpose of a stem-and-leaf plot?

Back

The purpose of a stem-and-leaf plot is to organize data while preserving the original values, making it easier to see the shape of the data distribution.