assuming the recreation center continues the pattern of giving away tickets to seven children each day with explicit formula shows the number of ice cream tickets remaining at the end of the day after aln number of days?

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.