A student randomly guesses the answer to a five questions true/false test. If there is a 50% chance of?

guessing correctly on each question, what is the probability that the student misses exactly one question? Probability that the student misses no questions?A student randomly guesses the answer to a five questions true/false test. If there is a 50% chance of?
The probability of a student missing exactly one question


is the same as P(4).





P(4) = 5p^4q = 5 * (.5)^4 * (.5) = .15625 or 15.63%





Probability that the student misses no questions?


P(5) = p^5 = (.5)^5 = .03125 or 3.13%





Here's short tutorial on binomial probability:


http://stattrek.com/Tables/Binomial.aspx





Good luck in your stats class,


~ Mitch ~A student randomly guesses the answer to a five questions true/false test. If there is a 50% chance of?
You're welcome Jessie!


Thanks for the stars and


keep up the good work in stats.


~ Mitch ~

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