4. In our class, there ae 10 emale and 15 male students. Among them, there are 6

Question

4. In our class, there ae 10 emale and 15 male students. Among them, there are 6 students who get grade 'A. Among these students A students, 3 are female. a). How many male students who do not get grade 'A"? b). How many female students who do not get grade 'A? 5. Given the following table about the stude nts' body of our class Have scholarship No scholarshtp Male 15 Let S=pick a student randomly, this student has scholarship. and M-, pick a student randomly, this student is a male. Find the conditional probabilities: PSIM) and PMIS).

Explanation / Answer

a)
total male students = 15
total male student who get A grade = 6 -3 = 3
hence number of male students who don't get grade A = 15 - 3 = 12

b)
number of female students who don't get grade A = 10 - 3 = 7

5)
P(S|M) = P(S and M)/P(M)
= 4 / (4 +11) = 4/15
P(M|S) = P( M and S)/P(S)
= 4 / (4 + 7) = 4/11

Please rate

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.