How to create a Summary Reference Box (SRB)
Step by Step Instructions.
A Summary Reference Box summarizes the information contained in 5 consecutive Reference Boxes. It gives us the top 3 digits in each position for all 5 Reference Boxes.
Therefore the Summary Reference Box is smaller with just 9 digits.
To create a Summary Reference Box you need the last 5 Reference Boxes done two days apart.
Let’s assume that the last Reference Box we did was on February 14. This would mean that we would need the Reference Boxes for these dates:
Feb 14, Feb 12, Feb 10, Feb 8, and Feb 6.
You may be doing the Reference Box every day and that is fine but when you do the Summary Reference Box you only use Reference Boxes that are 2 days apart.
We will then find the top 3 digits in the 1st (RED), 2nd (BLUE), and 3rd (GREEN) positions.
Two points to keep in mind: (1) Whenever two or more digits hit the same number of times we use the lowest of the two digits. (2) You can use a software program or Excel to sort these digits but it can also be done with paper and pen. The only skill you need to create this box is the ability to count.
1st Position (Red)
When we sort and count all the digits in the 1st position, we get the distribution you see below with 0 being the most frequent digit and 7 being the less frequent digit. So the top three digits in the first position are 0 (hit 5 times), then 2 (hit four times), and then 3 (hit three times). The digits 4 and 6 also hit three times but we use 3 since it’s the lowest of the three digits.
We then line up our top three digits like this:
2nd Position (Blue)
Below is the distribution of digits in the 2nd position. This is an easy one since the top three digits clearly stand out. They are 4, 5, and 1. They all hit three times.
Since the lowest digit always comes first, we will line up these three digits like this:
3rd Position (Green)
It’s clear to see that 1 and 2 are the most frequent digits in the 3rd position. Both 1 and 2 hit five times and 6 hit three times. Both 6 and 9 hit three times but we always use the lowest digit so we will use 6.
We line them up like this:
What we do now is very simple; we just put the 3 rows of the top digits together to create our Summary Reference Box like you see below. The date of this Summary Reference Box is the date of the most recent RB we used to create the SRB which was February 14.
This is the Summary Reference Box for February 14: