You’re evaluating a new hire in your company’s engineering department. together you’re working on a circuit where a 0.1@μf, 50-v capacitor is in series with a 0.2@μf, 200-v capacitor. the new engineer claims you can safely put 250 v across the combination. what do you say?

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).