Variance of the number of students, Basic Statistics

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Variance of the number of students

In a class with 18 boys and 12 girls, boys have probability 1/3 of knowing the answer and girls have probability 1/2 of knowing the answer to a typical question the teacher asks. Assuming that whether or not the students know the answer are independent events, find the variance of the number of students who know the answer.

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Basic Statistics: Variance of the number of students

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Basic Statistics: Variance of the number of students

Reference No:- TGS0724633

Have a Question? (oR Write a Review)

Recent Questions Asked Basic Statistics

Q : Interval of time between the eruptions

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Request for Solution File

Ask an Expert for Answer!!

Basic Statistics: Variance of the number of students

Reference No:- TGS0724633

Recent Questions Asked Basic Statistics

Q : Interval of time between the eruptions

Q : Concerning the maximum number of people

Q : Fraction of women among recipients

Q : Confidence on the mean of x

Q : Variance of the number of students

Q : Attendance district of a local high school

Q : Associated homogeneous recurrence relation

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Q : Self-reported improvement in pain

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