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In a secondary school, there are 400 male students and 600 female students. 50% of the...

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Statistics

In a secondary school, there are 400 male students and 600female students. 50% of the male students and 55% of the femalestudents are in senior secondary curriculum, the others are injunior secondary curriculum. The school had appointed 8% of seniormale students and 10% of senior female students to be the studentleaders. No junior secondary student can be student leader.

(a) If a student is selected at random in the school, find theprobability that

(i) the student is a senior student.

(ii) the student is a female student leader.

(b) Suppose a student is selected and known to be NOT a studentleader, what is the probability that

(i) the student is a male student.

(ii) the student is a senior female student.

Answer & Explanation Solved by verified expert
4.3 Ratings (690 Votes)
a i Psenior Psenior malePmale Psenior femalePfemale 50no of male students no of students 55no of female students no of students 050 400 400600 055600400600 05004    See Answer
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