Help here please ik this is easy but I have been in my computer for more than 12 hours pleaseeee help
2 answers:
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Answer:
The answer is D.
Step-by-step explanation:
A negative number multiply by another negative number will always give you a <u>positive</u> value .
Answer:
Step-by-step explanation:
Definitions and concepts
The Poisson process is useful when we want to analyze the probability of ocurrence of an event in a time specified. The probability distribution for a random variable X following the Poisson distribution is given by:
And the parameter represent the average ocurrence rate per unit of time
For this case we know that
And we want the probability that during the next five minutes, three cars will arrive, so then our rate becomes:
And we want this probability:
And if we use the pmf we got: