Let the random variable X count the number of times a randomly selected student's internet connection gets disrupted while doing schoolwork.  The table below gives the random variable's probability distribution.  Fill in the missing value that ensures the table is a valid probability distribution.  x P(X=x) 0 0.49 1   2 0.13 3 0.09 4 0.01   Compute the probability that a randomly selected student's internet connection does not go out at all. P(X=0)=    Compute the probability that a randomly selected student's internet connection gets disrupted at least twice.

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