Assume that all of the hi(g) is removed from a vessel containing this reaction, and equilibrium is re-established. what will be the new equilibrium concentration of hi if the equilibrium concentrations of h2 and i2 are both equal to 0.450m

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).