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The National Earthquake Information Center (NEIC) locates roughly between 12000 and 14000 earthquakes each year. Based on this, assume that the number of earthquakes each

The National Earthquake Information Center (NEIC) locates roughly between 12000 and 14000 earthquakes each year.

Based on this, assume that the number of earthquakes each year is normally distributed with a mean of 13000 and a standard deviation of 250.

a) What is the probability that between 12700 and 13160 earthquakes are located in a year?

b) What is the probability of a year having more than 13200 earthquakes in a year? c) What is the probability that less than 12890 earthquakes are identified?

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