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diamong [38]
4 years ago
14

What are different ways to add two rational numbers and get a negative

Mathematics
1 answer:
makkiz [27]4 years ago
5 0
If the sum is negative or if the signs are different and the negative has a biger absoulute value.
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A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probabili
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Answer and explanation:

Given : A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 ​(inclusive) mistakes is 0.53.

Let X be the number of mistake

P(X

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P(X>20)=1-P(X\leq 20)

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b. A student makes 6 or more mistakes

i.e. P(X\geq 6)=1-P(X

P(X\geq 6)=1-0.26

P(X\geq 6)=0.74

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P(X\leq 20)=0.79

d. Which two of these three events are​ complementary?

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Option a and c are complementary events.

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4 years ago
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