Question

What is the probability that a junior non-Physics major and then a freshman non-Physics major are chosen at random?

Answer 1

Probability = 0.0244

Step-by-step explanation:

Probability that Junior Non Physics Major & then a Freshman Non Physics Major are chosen:

Prob (Jr No-Ph Mjr) = Jr No-Ph Mjr / Total

= 18 / 82 = 0.2195

Prob (Fr No-Ph Mjr) = Fr No-Ph Mjr / Total (remaining)

= 9 / 81 = 0.1111

Prob [ Jr No-Ph Mjr & Fr No-Ph Mjr ] = 0.2195 x 0.1111 = 0.02439

≈ 0.0244