The process by wich metamorphic rock changes to igneous rock begins with

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Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

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).