At a customer service call center for a large company, the number of calls received per hour is normally distributed with a mean of 170 calls and a standard deviation of 20 calls. What is the probability that during a given hour of the day there will be less than 158 calls, to the nearest thousandth?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.