814
TURNER
Table 6— COMPARISONS OF THREE OBSERVED FREQUENCY
DISTRIBUTIONS OF !’Cs IN HUMANS WITH APPROPRIATE
NORMAL DISTRIBUTIONS*
Size
of
Subjects
sample
Total X*
Men
751
Women
Combined
Degrees
of
freedom
X95
P
79.62
18
28.87
<0.001
2959
25.63
12
21.03
1010
66.98
19
30,14
0.01 to 0,02
<0.001
*Based on Onstead et al.3!
OTT
VOOO OT TT
T
TOF
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0°
xr
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wi
=
of °
a
Oo
2 100
°
0
°°
o
50°
oe?
a
0°”
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T
o
J
=)
a
7
5
=
a
a
3
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°
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7
L
4
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bbb bie
0.)
0.51
5
10
pisipy | pt
30
50
70
90 95
yi
9899
99.8
CUMULATIVE PERCENT
Fig. 7—Cumulative frequency distribution of 4’Cs in
(based on Onstead et al."'),
1010 humans
Unpublished data from our laboratory suggest that non-Gaussian
distribution of radionuclides in populations of wild animals exposed to
local fallout
are
more common than symmetrical ones. Figure 8
shows the evidently skewed distribution of Sr in 55 jackrabbits
(Lepus californicus)
collected from Jackass Flats, Nev., in 1959.
When the distribution is compared with a normal distribution of the
Same mean and variance, the total X’, with four degrees of freedom,
is 17.05 (X? ); = 9.49). However, the logarithms of these observations