Frogs A wildlife biologist examines frogs for a genetic trait he suspects may be linked tosensitivity to industrial toxins in the environment. Previous research had established that this trait isusually found in 1 of every 8 frogs. He collects and examines a dozen frogs. If the frequency of the traithas not changed, what's the probability he finds the trait ina) none of the 12 frogs?b) at least 2 frogs?c) 3 or 4 frogs?d) no more than 4 frogs?