60 customers per hour arrive randomly (i. e., cva = 1) and randomly join one of 6 unpooled queues. each of the six employees can handle exactly 15 customer requests per hour (i. e., no variability). how many minutes of waiting time can be saved by pooling of all six queues into one queue?

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

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.