Eight mice are selected at rand on and they are divided into two graups of 4 each. Each in group A is of certain poisorawhich is expected to mous e Jiven a dose Kill one in four; each mouse in group B...

Discret Probability distribution

Extracted text: Eight mice are selected at rand on and they are divided into two graups of 4 each. Each in group A is of certain poisorawhich is expected to mous e Jiven a dose Kill one in four; each mouse in group B is given a dose of certain poison 'b which is expected to Kill one in two. Show that nevertheless, there may be fewer deaths in group B than in group A and find the probability of this happening.