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11Alexandr11 [23.1K]
3 years ago
9

What is the common ratio for the sequence 5, -10, 20, -40, ...?

Mathematics
2 answers:
Stels [109]3 years ago
7 0

Common ratio is -2

 5 x (-2) = -10

-10 x (-2) = 20

20 x (-2) = -40

Anna [14]3 years ago
6 0

Answer:

the common ratio is -2


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Suppose that E and F are two events and that P(E)=0.3 and P(F|E)=0.5. What is P(E and F)?
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E and F are two events and that P(E)=0.3 and P(F|E)=0.5. Thus, P(E and F)=0.15


Bayes' theorem is transforming preceding probabilities into succeeding probabilities. It is based on the principle of conditional probability. Conditional probability is the possibility that an event will occur because it is dependent on another event.

P(F|E)=P(E and F)÷P(E)

It is given that P(E)=0.3,P(F|E)=0.5

Using Bayes' formula,

P(F|E)=P(E and F)÷P(E)

Rearranging the formula,

⇒P(E and F)=P(F|E)×P(E)

Substituting the given values in the formula, we get

⇒P(E and F)=0.5×0.3

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∴The correct answer is 0.15.

If, E and F are two events and that P(E)=0.3 and P(F|E)=0.5. Thus, P(E and F)=0.15.

Learn more about Bayes' theorem on

brainly.com/question/17010130

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2 years ago
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3 years ago
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