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If you had a stem and leaf diagram like this for example
1/1,2,6
2/4,4,4,5,7,8,9
3/1,6
4,2
5/4,7
Key
1/1- 11 years old
The mode would be the value on the "leaf" that appears most frequently so in this case it would be 24.
However, the modal group would be the group from the "stem" that has the most values, so in this case it would focus on the 20's.
You would write it from the number on the stem to the highest in the group, like- 20-29. You would write it from 20 even if there is nobody who is actually 20 years old, as there isn't in this case.
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How do you find the modal group in a back to back stem and leaf diagram?
To find the modal group in a back-to-back stem-and-leaf diagram, you need to look for the group with the highest frequency on both sides of the diagram. This group represents the mode for the data set. The mode is the value that appears most frequently in the data. In a back-to-back stem-and-leaf diagram, the modal group will be the one with the highest frequency on both sides of the stem.
In a stem and leaf diagram how do you find the modal average?
Once all of the data are displayed in the stem and leaf diagram it is simply a question of looking at the most frequently occurring value. By having the data arranged in an ordered list will make it easier to determine both the mode and median value.
When are stem and leaf plots used?
stem and leaf plots are used in math
What is a leaf in math?
a leaf is part of a stem and leaf plot
What is a double stem and leaf plot?
A double stem-and-leaf plot is also known as a back-to-back stem-and-leaf plot. Instead of there being a stem on the left side and its leaf on the right, the stem is in the middle, with a leaf on the right and a leaf on the left. It is used to compare sets of data. For example, the number of homeruns hit by National League teams vs. American League teams.
