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RATE OF REGRESSION IN HEREDITARY STATURE

HEIGHT

in

inches

The Deviates of the Children are to those of

their Mid-Parents as 2 to S .

DEVIATE

in

inches

72 -

v -

+4

71   -

When Mid-Parents are taller than mediocrity,

-

+ 3

 

their Children tend to be shorter'thanthey   Q

t

-

+ 2

     

   ~

 

70 -

       

~~

   
           

-

+1

68 -

   

w

       
             

0

68 -

           
 

I

     

-

-1

67 -

I

         
   

5

       

66 -

 

When

Mid Parents are

shorter

 

than mediocrity,

 
 

O

their Children tend

to be

 

taller

than they.

-

-3

65 -

           
         

-

-4

FORECASTER OF STATURE
Fig(b)

Picture

C

Height in inahei

MALE.

FEMALES.

+D

u

3 0 1

ri

MALE.

N 0 0

75

70

75

0

65

65

sd

60

M F

5

Fig. 5. Galton's Second Regression Line and his "Forecaster of Stature."

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