Question

Giving a test to a group of students, the grades and gender are summarized below ABC TotalMale6151435Female19112050Total25263485If one student is chosen at random,Find the probability that the student was NOT a male that got a "B". Round to at least 3 decimal places.

Answer 1

Based on the table:

Total number of students = 85

No. of students who aren't male who get a B = 70

The probability will be:

`\text{ Probability = }\frac{\text{ No. of students who aren't male that get B}}{\text{ Total no. of students}}`
`\text{ = }(70)/(85)`
`\text{ Probabilty = 0.8235294117647059 }\approx\text{ 0.824}`

Therefore, the probability is 0.824