Galton Board 15.7 x 11.8 cm Normal Distribution Model with Steel Balls Plastic Design Black Stand Desktop Tool
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The Galton board is a demonstrative desktop model that shows how a normal probability distribution is formed in just a few seconds. Inside the transparent board measuring 15.7 x 11.8 cm, small steel balls move and, when the board is tilted, fall through rows of pins. At each pin, the ball randomly bounces left or right and eventually lands in one of the compartments at the bottom. The result is always a similar pattern in the shape of a bell curve, which we recognise from statistics textbooks. The model thus connects randomness and regularity in a way that even those who do not typically engage with mathematics can understand.
The front of the board is printed with a clear explanation, making the model also serve as a small educational board. It features Pascal's triangle with row numbers and their sums, formulas for standard deviation, the binomial theorem, and the formula for normal distribution. At the bottom, the bell curve is marked, and next to the compartments are the compartment numbers with expected percentages of balls. With each tilt, you can compare how the actual result approaches the theoretical distribution.
- Product Type – Galton board as a model of normal distribution
- Dimensions – height 15.7 cm and width 11.8 cm including the stand
- Material – plastic
- Contents – steel balls enclosed within the board
- Printing – Pascal's triangle and binomial theorem and formulas for standard deviation and normal distribution
- Stand – black stand for placing the board on a table or shelf
- Usage – teaching mathematics and statistics and decorating a workspace
- Package Contents – Galton board with steel balls and black stand
Using it is simple. Just remove the board from the stand, tilt it, and set it back up; the balls will accumulate at the top and gradually fall through the pins. Watching the falling balls has a calming effect, making the model appreciated by those seeking an interesting decoration for their office desk. The surface of the board can be wiped occasionally with a dry or slightly damp cloth; protect it from falls onto hard floors.
The Galton board is a practical tool for teachers, students, and anyone interested in mathematics and natural sciences. Due to its compact size, it fits on a desk, in a library, or on a school lectern and will catch the attention of any visitor at first glance. The model made of plastic with a black stand is also an original gift for statisticians, analysts, and investors who work with probability daily. It clearly demonstrates the principle of normal distribution without complex calculations and helps explain why many phenomena in nature and society follow the same bell curve. It is also suitable as a basis for discussions about randomness, averages, and variance directly in the classroom or at home.
Delivery
Delivery to address€1.59
Estimated delivery: 12 – 25 November
Shipped from China
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Withdrawal period30 days from receipt of the goods
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Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
Spain
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About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
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Seller:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
Manufacturer:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
EU responsible person:
BioDomi GmbH
Address: Schokoladenring 13, 65795 Hattersheim am Main, Germany
E-mail: arcontact@biodomieurope.de
Telephone: +49 178 5749814
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