A biologist tranquilizes 400 wild elephants and measaures the lengths of their tusks to determine their ages. Identify the population and the sample.
A
population: 400 elephantssample: tusk lengthsB
population: all wild elephantssample: 400 tusksC
population: all wild elephantssample: 400 elephantsD
population: 400 elephantssample: all wild elephants