Suppose that the average lifespan of an elephant that lives in a protected sanctuary is 55 years with a standard deviation of 2.
a) The majority of elephants in the sanctuary live less than 55 years.
b) The majority of elephants in the sanctuary live more than 55 years.
c) The average lifespan of elephants in the sanctuary is exactly 55 years.
d) Elephants in the sanctuary have a uniform lifespan distribution.