Nursing school
The following table shows 1000 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:
Calculate the probability that the company will pick an applicant at random from this group:
a. Graduated from a superior high school.
b. Made a low score on the examination and graduated from a superior high school. c. Made a high score or graduated from a superior high school.
| Quality of High Schools Score | Poor(P) | Average(A) | Superior(S) | Total |
|---|---|---|---|---|
| Low(L) | 105 | 60 | 55 | 220 |
| Medium(M) | 70 | 175 | 145 | 390 |
| High(H) | 25 | 65 | 300 | 390 |
| Total | 200 | 300 | 500 | 1000 |
Calculate the probability that the company will pick an applicant at random from this group:
a. Graduated from a superior high school.
b. Made a low score on the examination and graduated from a superior high school. c. Made a high score or graduated from a superior high school.
Correct answer:
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