Suppose that a brand of lightbulb lasts on average 2341 hours with a standard deviation of 248 hours. assume the life of the lightbulb is normally distributed. calculate the probability that a particular bulb will last from 1706 to 2668 hours?
p(1706 < x < 2668) =
enter your answer as a number accurate to 4 decimal places.
*note: all z-scores must be rounded to the nearest hundredth.

Q&A Education