The smallest value is 17.4 and the largest value is 31.5 Find the largest and smallest number in the data.Let’s make a stem and leaf plot of this data We will follow some steps through an example: Lower and larger values are at low frequency or rare in our data. The data are clustered at 9s,11s, and 14s or from 9.0 to 14.9.ĩ.0 is the minimum value for row 9 to represent, and 14.9 is the maximum value for row 14 to represent. There is no other value that is repeated more than that. There are 4 sevens beside 9 so the mode in this data is 9.7 because it is repeated 4 times. Look at the last row to get the maximum of our data.Look at the first row to get the minimum of our data.We look at the key, the stem represents the single values and the leaf represents the decimal values. Lower and larger values are at low frequency or rare in our data.Īnother example, the following is a stem and leaf plot of 30 wind measurements in miles per hour (mph) in New York City. The data are clustered at 15s and 16s or from 150-169.ġ50 is the minimum value for row 15 to represent and 169 is the maximum value that row 16 can represent.ġ5 has 11 numbers in its row and 16 has 13 numbers in its row. Look at the crowded rows to see where the main cluster of data.There are 4 zeros beside 16 so the mode in this data is 160 cm because it is repeated 4 times. Look at the most frequent value in each row to get the most frequent value in our data or the mode.We look at the key, the stem represents tens and the leaf represents single values.The following is a stem and leaf plot of the heights in cm of 30 participants There is no other value that occurs more than that. The most frequent age (or the mode) in this data is 70 years because it occurs 3 times.The minimum age is 37 years and the maximum age is 70 years.The 3 stem can represent any number from 30 to 39.įrom this stem plot, we can conclude that: Here, the stem unit represents tens and the leaf unit represents single values. If we plot this data as a stem and leaf plot, we will get The leaves are listed in increasing order in a row to the right of each corresponding stem.Įxample, the following is the age in years for 15 persons from a certain survey.ħ0 56 37 69 70 40 66 53 43 70 54 42 54 48 68 Each stem is listed, even if some stems have no leaves. The stems are listed down in the left column. The stem and leaf plot is drawn in a table with two columns. The stem and leaf plot is used when your data is not too large (about 15-150 data points). The stem is the first digit or digits, while the leaf is the last digit. The stem and leaf plot is a plot used to represent numerical data by showing its distribution.Įach numerical data value is split into a stem (the first digit or digits) and a leaf. In this topic, we will discuss the line graph from the following aspects: “The stem and leaf plot is a chart used to represent numerical data to show its distribution” The definition of the stem and leaf plot is: Stem and leaf plot – Explanation & Examples
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