Question: If X ~ Exponential (2), does this mean beta =2 or lambda=2? So what is the expected value for X ~ Exponential (2)? f

If X ~ Exponential (2), does this mean beta =2 or lambda=2?

So what is the expected value for X ~ Exponential (2)?

If X ~ Exponential (2), does this mean beta =2 or lambda=2?

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