The lifespans of gorillas in a particular zoo are normally distributed. The average gorilla lives 20.8 years; the standard deviation is 3.1 years. Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a gorilla living between 11.5 and 27 years. 1+ 1+ Empirical Rule 99.7% 95% 68%- 0.15% 2.35% 13.5% 34% 34% 13.5% 2.35% 0.15% -30 -20 -10 +10 +20 +30