The number of flaws in a certain type of lumber follows a Poisson distribution with a rate

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The number of flaws in a certain type of lumber follows a Poisson distribution with a rate of 0.45 per linear meter.
a. What is the probability that a board 3 meters in length has no flaws?
b. How long must a board be so that the probability it has no flaw is 0.5?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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