Please help with this math problem
GE light bulbs are supposed to last for 1200 hours. However, light bulbs of this type last only 1185 hours with standard deviation of 70 hours. What is the probability that a randomly selected light bulb will have an average life of 1200?
Assuming a continuous distribution, the probability that a light bulb last exactly 1200 hours is 0. Typically, a problem like this asks for probability between some value and another value.