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Function Keys
115
Press
Display
storage registers used for
accumulations are cleared
to zero initially. (Display
assumes no results remain
from previous examples. )
Number of data pairs
(n)is 1.
62
1200 513
58
1500 (2
62
1450 (13
3.00
73
1950 523
84
1000 (22
68
1750 B2
Number of data pairs
(n) is 6.
a
1475.00
Average value of net
worth.
0
67.83
Average age of the
sample.
86
347.49
Standard deviation (sy)
of net worth of sample.
Standard deviation (s,)
of age of sample.
Q =)
If the six persons used in the sample were actually the six wealthiest
persons, the data would have to be considered as a population
rather than as a sample. The relationship between sample standard
deviation (s) and the population standard deviation (o) is illustrated
by the following equation.
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