The lifespans of tigers in a particular zoo are normally distributed. The average tiger lives 22.4
22.422, point, 4 years; the standard deviation is
2.7
2.72, point, 7 years.
Use the empirical rule
(
68
−
95
−
99.7
%
)
(68−95−99.7%)left parenthesis, 68, minus, 95, minus, 99, point, 7, percent, right parenthesis to estimate the probability of a tiger living longer than
14.3
14.314, point, 3 years.