Question

In a scientific study there are 8 guinea pigs 3 of which are not pregnant if 3 are selected at random without replacement fins the probability that all are not pregnant Answer the following problems using multiplication rule make sure to reduce your fraction

Answer 1

Determine the probability for the selection of three pigs (without replacement) which are not pregnant.

`\begin{gathered} P=(3)/(8)\cdot(2)/(7)\cdot(1)/(6) \\ =(6)/(56\cdot6) \\ =(1)/(56) \end{gathered}`

So answer is 1/56.