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jeka94
3 years ago
7

What were the heating coses for December and January together?

Mathematics
1 answer:
Daniel [21]3 years ago
3 0

Um what? There is no table or anything to go off of.

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<em>amount after 3 years</em>

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Carlos started at sea level, climbed a cliff to a height of 14 m, then dived 19 m. Find the level at which has dive ended
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A quiz in statistics course has four multiple-choice questions, each with five possible answers. A passing grade is three or mor
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Answer:

a) 0.0016

b) 0.0224

Step-by-step explanation:

If every question has 5 possible answers, the probability of getting the correct answer by guessing would be 0.20. The probability of getting an incorrect answer would be 0.80.

a)Find the probability she lucks out and answers all four questions correctly.

To do this, Allison would have to guess right the first, second, third AND fourth answers. Therefore, we have to multiply the probabilities:

0.20 x 0.20 x 0.20 x 0.20 = 0.0016

The probability that she answers all 4 questions correctly is 0.0016.

b) Find the probability that she passes the quiz.

To pass the quiz, she has to have three OR 4 correct answers:

  1. The probability that she has 3 correct answers is: 0.20 x 0.20 x 0.20 x 0.80 (since she has to have 1 correct answer and 1 incorrect one) = .0064.
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Now, we have to sum up these two scenarios:

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Thus, the probability that she passes the quiz is 0.0224

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