## Tools for Thought |

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Page 115

It is argued that we need to introduce some negative feed-back control system,

which will convert the J-shaped

note is that at present we are faced with J-shaped

It is argued that we need to introduce some negative feed-back control system,

which will convert the J-shaped

**curve**into an S-shaped**curve**. The first point tonote is that at present we are faced with J-shaped

**curves**if we plot ...Page 131

... draw a smooth

gives a stepped outline is known as a histogram, and the smooth

frequency

statistics.

... draw a smooth

**curve**which removes the jaggedness. The type of graph whichgives a stepped outline is known as a histogram, and the smooth

**curve**is afrequency

**curve**(8b. 1). As I have said, there is an elaborate mathematics ofstatistics.

Page 179

We first make a drawing representing effectiveness of actions. Plot effectiveness-

in-solving-P horizontally, and effectiveness-in-solving–Q vertically, and draw a

...

We first make a drawing representing effectiveness of actions. Plot effectiveness-

in-solving-P horizontally, and effectiveness-in-solving–Q vertically, and draw a

**curve**showing the best that can be done by any possible combination of A and B...

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