Expected number of bulbs, A certain type of lightbulb has

Expected number of bulbs

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Reference no: EM13100412

A certain type of lightbulb has an average life of 500 hours with a standard deviation of 100 hours. The length of life of the bulb can be closely approximated by a normal curve. An amusement park buys and installs 10,000 such bulbs. Find the total number that can be expected to last for each period of time.

Reference no: EM13100412

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