AboutPaul Klarreich Expertise I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction.
I can also try (but not guarantee) to answer questions on Abstract Algebra
-- groups, rings, etc. and Analysis -- sequences, limits, continuity.
I won't understand specialized engineering or business jargon.
Experience I taught at a two-year college for 25 years, including all subjects from algebra to third-semester calculus.
Expert: Paul Klarreich Date: 5/12/2008 Subject: Probability of Independent Events
Question On a multiple-choice test of 10 questions, each question has 5 possible answers. A student is certain of the answers to 4 questions but is totally baffled by 6 questions, what is the probability that the student will get a score of 5 or more on the test? Express your answer to two decimal places.
Answer Questioner: Joel
Category: Advanced Math
Private: No
Subject: Probability and statisitcs
Question: On a multiple-choice test of 10 questions, each question has 5 possible answers. A student is certain of the answers to 4 questions but is totally baffled by 6 questions, what is the probability that the student will get a score of 5 or more on the test? Express your answer to two decimal places.
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Hi, Joel,
Try looking at the question this way:
He only needs one more right to get at least a 5. You want
