Math  /  Word Problems

QuestionA light bulb lasts N(2000,65)N(2000, 65) hours. Out of 590 bulbs, how many last < 1850 hours? Round to the nearest whole number.

Studdy Solution
Calculate the expected number of light bulbs that will last less than1850 hours.
Expectednumber=590times0.0105=6.195Expected\, number =590 \\times0.0105 =6.195Since we can't have a fraction of a light bulb, we round this to the nearest whole number. Therefore, we expect about6 light bulbs to last less than1850 hours.

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