Statistical teaching apparatus
First Claim
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1. A statistical teaching apparatus for statistically evaluating a plurality of elements comprising:
- means for selectively measuring a given characteristic of one or more selected elements of a selected group of said elements;
means for selectively averaging said measured characteristics of said elements in said selected group;
means for selectively coupling said one or more elements to said means for measuring and to said means for averaging to respectively measure the characteristic of any selected element and to provide the average of the characteristics of said selected group; and
means for indicating the measured value of said selected element characteristic and the average of said characteristic values of said selected group.
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Abstract
A statistical teaching apparatus includes a plurality of parallel circuits selectively coupled to an operational amplifier. Each circuit is adapted to receive a component from a population being statistically evaluated. The circuits include amplifier feedback elements arranged to selectively cause the amplifier to produce an output voltage representing the value of a parameter of any selected component or the average parameter value of any selected group of components so as to permit plotting of actual parameter values of a selected subgroup and measuring the average parameter value of that subgroup.
10 Citations
10 Claims
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1. A statistical teaching apparatus for statistically evaluating a plurality of elements comprising:
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means for selectively measuring a given characteristic of one or more selected elements of a selected group of said elements; means for selectively averaging said measured characteristics of said elements in said selected group; means for selectively coupling said one or more elements to said means for measuring and to said means for averaging to respectively measure the characteristic of any selected element and to provide the average of the characteristics of said selected group; and means for indicating the measured value of said selected element characteristic and the average of said characteristic values of said selected group. - View Dependent Claims (2, 3)
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4. A teaching apparatus comprising:
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means for releasably receiving a plurality of electrical components; means for applying a first signal of substantially the same value to each said means for receiving;
said received components each being responsive to said applied first signal for creating a second signal having a value representing a component parameter under test;averaging means responsive to said second signal applied thereto for providing an output signal having a value representing the second signal value of a selected component and the average value of said second signal values for a plurality of selected components; switch means for coupling selected ones of said means for applying said first signal to corresponding component receiving means, and for coupling corresponding component receiving means to said averaging means; and indicator means responsive to said output signal for indicating said second signal value of said selected component and said average value. - View Dependent Claims (5, 6)
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7. A teaching apparatus comprising:
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a plurality of sockets, each for releasably receiving a corresponding electrical component, each component having a given parameter of a certain value; signal generating means for generating a plurality of like signals, each said received component being responsive to a corresponding one of said like signals for producing a component signal exhibiting said certain value; parameter averaging means responsive to said component signal for producing an output signal having a value representing the average of said certain values of a selected group of said component signals applied thereto, said averaging means including means such that said output signal has a value representing the value of that certain value of any one selected component signal of said selected group applied thereto; switch means for selectively coupling any of said plurality of socket means corresponding to said selected group to said corresponding like signal generating means and to said averaging means; and indicator means responsive to said output signal for indicating said average and selected component parameter values. - View Dependent Claims (8, 9)
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10. A statistical teaching apparatus comprising:
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means for sensing a given characteristic of each of a plurality of elements to be statistically evaluated; means for selectively measuring the value of the sensed given characteristic of one or more selected elements of a selected group of said elements; means for selectively averaging said measured characteristics of said elements in said selected group; means for selectively coupling said one or more means for sensing to said means for measuring and to said means for averaging to respectively measure the sensed characteristic of any selected element and provide the average of said sensed characteristics of said selected group; and means for indicating the measured value of said selected element sensed characteristic and the average of said sensed characteristic values of said selected group.
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Specification