Probability Basicsmedium
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A computer system has three independent security firewalls. The probability that firewall 1 fails to block an incoming attack is 0.10, firewall 2 fails with probability 0.15, and firewall 3 fails with probability 0.20. If an attack occurs, what is the probability that at least one of the firewalls successfully blocks it?
A computer system has three independent security firewalls. The probability that firewall 1 fails to block an incoming attack is 0.10, firewall 2 fails with probability 0.15, and firewall 3 fails with probability 0.20. If an attack occurs, what is the probability that at least one of the firewalls successfully blocks it?