In Studying a Certain Endangered Species, Scientists Have Found That

Multiple Choice

In studying a certain endangered species, scientists have found that when the animals are relocated, it takes x years without offspring before the first young are born, where x and the probability of x are given below. What is the expected number of years before the first young are born? ​ ​

A) 1.96 years
B) 0.96 years
C) 0.64 years
D) 1.56 years
E) 1.68 years