## When Probability is strictly less than...

When Probability is strictly less than should I compute something like P(X<1) as:

1-P(X<1)$$^{c}$$ = 1-P(X$$\geq$$1)

Thanks,
D

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 Recognitions: Homework Help Short answer: no, there is no need to do that. Software (or tables, if you still need to use those) will allow you to calculate $$P(X < 1)$$ and things similar just fine.

 Quote by Dwolfson When Probability is strictly less than should I compute something like P(X<1) as: 1-P(X<1)$$^{c}$$ = 1-P(X$$\geq$$1) Thanks, D
When you are dealing with continuous distributions the probability of 1 - P(X < 1) and 1 - P(X <= 1) are treated the same. If the random variable is discrete it will make a difference.

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