RD Sharma - Mathematics (Volume 2)

Book: RD Sharma - Mathematics (Volume 2)

Chapter: 33. Binomial Distribution

Subject: Maths - Class 12th

Q. No. 30 of MCQ

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Mark the correct alternative in the following:

The probability of guessing correctly at least 8 out of 10 answers of a true false type examination is




p(x8) = p(x=8) + p(x=9) + p(x=10)

= 10C8 p8 q2 + 10C9 p9 q1 + 10C10 p10 q0

= p10 (45+ 10+1)

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