On a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are i
1 answer:
Answer:
Step-by-step explanation:
given that on a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are incorrect
By mere guessing probability for choosing correct answer = p = 0.2
also each question is independent of the other
Hence if X is the number of correct questions then
X is binomial with p = 0.2 and n = 6
a) being correct on three questions,
=
(b) being correct on four questions,
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(c) being correct on all six questions
=
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Answer:
where t is in years
Step-by-step explanation:
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We can use the simple interest formula where A is the final amount, P is the principal, r is the rate, and t is time.
We can plug in 10,000 for P and 0.05 for r, giving us