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PROCESS THROUGH WHICH THE DtsTRi3UTrON OP STATURES,

IN ,SUCCE$$NE GENERATIONS, OF THE SAME PEOPLE, REMAINS UNCHANGED.

 

L7

W

X

X CA

STATISTICAL DISTRIBUTION OF STATURES IN THE S9VERAL SYSTEMS OF

 

A

GENERATION

 

MWD-PARENTS

 

GENERANTS

 

GENERATION

73-

72-

71-

70-

69-

68.25- 68--0   

67-

 

2

 

1

a

F

 

tA

2

+4

+2

-1

6

 

3

Z

1

W

w

6

+ 3

10

w

o

9

 

7

a.

0

1.4

A

10

+2

T

8

t7

, 2

0

13

 

- - -_ - - -

8

UPPER QUARTILE

   MEDIAN

IT

17

8

 

21

21

 

25

25

~~

`

17

17

8

---g--~

 

12

 
   

-

13

 

-

LOWER QUARTILE

66-

       

w

 

H

   
   

10

 

9

 

7

'4

10

 
 

3 ,

         

cc

   

65-

 

6

 

3

W

1

N

6

 
 

-4

     

v

 

'-'

 

-4

64

   

Z

 

z

 

C1

   
   

2

v

1

v

   

2

 
                   

TOTAL ...

100

 

100

 

100

 

100

 

PROBABLE DEVWATIOtf

iN   ...

INCHES

1•?

 

1.2

 

0.8

 

1•T

 

Fig. 7. Galton's Diagram showing how a stable Population reproduces itself.


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