Stem and Leaf IGCSE

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, to retain the original data values while showing their distribution.

Front

How do you find the median in a stem-and-leaf plot?

Back

To find the median, arrange the data in numerical order and locate the middle value. If there is an even number of observations, the median 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.

Front

How do you determine 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 does it mean to score full marks?

Back

Scoring full marks means achieving the highest possible score on a test or assessment.

Front

How do you identify the number of students scoring above a certain percentage?

Back

Count the number of data points in the stem-and-leaf plot that are greater than the specified percentage.

Front

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

Back

The purpose is to organize and display data to facilitate easy interpretation and analysis.

Front

What is a key advantage of using a stem-and-leaf plot over a histogram?

Back

A key advantage is that a stem-and-leaf plot retains the original data values, allowing for more detailed analysis.

Front

How can you interpret the leaves in a stem-and-leaf plot?

Back

The leaves represent the last digits of the data values, while the stems represent the leading digits.

Front

What is the significance of the median in data analysis?

Back

The median provides a measure of central tendency that is less affected by outliers than the mean.