# help me 1 hour help me 10 buck 1 hour

May 10th, 2015
HelloWorld
Category:
Algebra
Price: \$5 USD

Question description

Assignment: Complementary Events Investigation

Mrs. Hudson plans to give a 10 question multiple choice exam in which each question has 4 options. Each question counts for 1 point.  A score of 8 or more is a passing score while 7 or less is a failing score.

The probabilities of guessing a certain number of questions correctly are listed in the table below.

 Number of Questions Correct Probability for Guessing Correctly 0 0.05631351 1 0.18771172 2 0.28156757 3 0.25028229 4 0.14599800 5 0.05839920 6 0.01622200 7 0.00308990 8 0.00038624 9 0.00002861 10 0.00000095

I. Compute the probability of answering 8 or more questions correctly by calculating the probability with a direct sum and by using complements.

II. How do the two approaches compare?

If Tyler wants to pass his exam, should he study?

(Top Tutor) Daniel C.
(997)
School: Purdue University

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May 10th, 2015
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