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Sagot :
Answer:
Here, total number of students is = (3+1+4+2+7+9+6+5) = 37
Event A represents Girls and event B represets Seniors.
Number of girls who are senior students is = 5
Number of senior students is = 5+2 = 7.
Now, P(A\cap B) = [Number of girls who are senior students] / [Number of total students]
i.e., P(A\cap B)=\frac{5}{37}
And, P(B) = [Number f senior students] / [Number of total students]
i.e., P(B)=\frac{7}{37}
Then, P(ANB) P(AB) = P(B)
i.e., P(A|B)=\frac{5/37}{7/37}
i.e., P(A|B)=\frac{5}{7}
Therefore, \boldsymbol{P(Girl|Senior)=\frac{5}{7}}
Explanation:
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