SOLUTION: a true-or-false quiz has five questions. Use a simulation or a sample space to find the probability of guessing at random and getting three correct answers
Algebra.Com
Question 866993: a true-or-false quiz has five questions. Use a simulation or a sample space to find the probability of guessing at random and getting three correct answers
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a true-or-false quiz has five questions. Use a simulation or a sample space to find the probability of guessing at random and getting three correct answers
----------------------------------
Sample space has 2^5 = 32 elements.
# of elements with 3 correct answers:: 5C3 = 5C2 = 10
----
P(3 correct) = 10/32 = 5/16
-----------------------------------
Cheers,
Stan H.
------------
RELATED QUESTIONS
Suppose the quiz consists of 20 true - false questions.a student hasn't studied for the... (answered by greenestamps)
2. A Spanish examination includes 5 True or False questions. The probability of a student (answered by stanbon)
Using a simulation, What is the probability of getting 3 out of 4 true or false questions (answered by josgarithmetic)
Using a simulation, What is the probability of getting 3 out of 4 true or false questions (answered by josgarithmetic)
A test has 5 true/false questions. What is the probability of guessing the correct answer (answered by harpazo)
True-False Test A professor gives a test with 100 true-false
questions. If 60 or more... (answered by edjones)
A student is unprepared for a true/false quiz. The quiz has 5 questions. If she guesses... (answered by lynnlo)
what is the probability of getting 3 true or false questions right..and i need a sample... (answered by ewatrrr)
Your teacher gives a quiz that has 5 true or false questions. What is the theoretical... (answered by jim_thompson5910,stanbon)