Suppose that the life expectancy of a certain brand of nondefective light bulbs is normally distributed, with a mean life of 1100 hours and a standard deviation of 50 hours. Find the probability that a light bulb of this brand selected at random lasts less than 1025 hours, using the normal distribution as a model. Click here for page 1 of the Areas under the Normal Curve Table Click here for page 2 of the Areas under the Normal Curve Table What is the z-score for a lightbulb that lasts 1025 hours? (Type an integer or a decimal.) The probability that a light bulb selected at random lasts less than 1025 hours is (Round to four decimal places as needed.)

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