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Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false