The number of messages that arrive at a Web site is a Poisson distributed random variable with a mean of 5 messages per hour. Ro
1 answer:
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Answer:
1.2
Step-by-step explanation:
First, you cancel out to become
Then that becomes
Now, you convert the element to a decimal form to be
Finally, you subtract them (because a negative plus a positive is subtraction) to get the final answer of 1.2
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