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130
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Normal Curve Demonstration Apparatus
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(Laffayate Model). This is an effective visual
demonstration device for showing the natural
normal distribution curve and illustrating
a graphic picture of the law of probability.
Marbles should be inserted through the hopper
to a preset but adjustable position to produce
the Normal Distribution Curve. This
unit is ideal both for demonstration in statistics
classes as well as for those experiments
requiring assessments of normal probability
phenomena by the subject. Instruction
manual is also available.
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