Sir i am stuck for this question

3. The following table shows 1,000 nursing school applicants classified according to scores made on a college entrance examination and the quality of the high school from which they graduated, as rated by a group of educators. Quality of High School Poor Average Superior Score (P) (A) (S) Total Low (L) 105 60 55 220 Medium (M) 70 175 145 390 High (H) 25 65 300 390 Total 200 300 500 1,000 Find the following probabilities: [a] Pr[A]; [b] Pr[H]; [e] Pr[M]; [d] Pr[A H ]; [e] Pr[MP]; [f] Pr[HS ]. (1, 1, 1, 2, 2, 2 marks)