Use the Rule of 72 to solve. Manny has his money in a savings account earning 4.5% interest. How long it will take his money to
2 answers:
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(x,y) -> (y,-x)
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Answer:
0.0656
Step-by-step explanation:
For each message, we have these following probabilities:
90% probability it is spam.
10% probability it is legitimate.
Compute the probability that the first legitimate e-mail she finds is the fifth message she checks:
The first four all spam, each with a 90% probability.
The fifth legitimate, with a 10% probability.