Table of Contents
How do you find the key for a stem-and-leaf plot?
How do you find the key in a stem plot? The key in a stem and leaf plot is often below the stem and leaf plot and shows an example stem and leaf such as 5|7 and what that stem and leaf represents (such as 57 or 5.7).
Are stem and leaf diagrams in the new maths GCSE?
For example Edexcel lists stem and leaf diagrams and frequency polygons in their GCSE (9-1) Mathematics Content Guidance FAQs, so I’d definitely teach these topics if my students were going to sit the Edexcel exams.
Is stem and leaf still on GCSE?
Although stem and leaf diagrams have been removed from the national curriculum but still appear on the Edexcel sample materials. The exam papers have to run for a total of 4.5 hours, with at least half being calculator assessed. These three have all gone for three 1.5 hour papers, with one non-calculator.
Is stem and leaf on GCSE?
What is the key in a stem-and-leaf plot?
When reading a stem and leaf plot, you will want to start with the key. It will guide you on how to read the other values. The key on this plot shows that the stem is the tens place and the leaf is the ones place.
What does the key mean in a stem and leaf diagram?
How do you make a big number on a stem-and-leaf plot?
To make a stem and leaf plot, each observed value must first be separated into its two parts:
- The stem is the first digit or digits;
- The leaf is the final digit of a value;
- Each stem can consist of any number of digits; but.
- Each leaf can have only a single digit.
What is a leaf function?
Leaf function The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy. The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.
What is the median in a stem and leaf diagram?
The median is the middle number of a set of data. The mode is the number that occurs the most in a set of data. You can use a stem-and-leaf plot to find the mean, median and mode of a set of data. To find the mean, add up all of the numbers in the set and divide by the number of values that you added.
What does N mean in stem-and-leaf plot?
Sample size
Sample size (N) The sample size is displayed at the top of the stem-and-leaf plot.
What is the key in stem and leaf diagram?