Mathematics, 12.03.2020 05:57 tony7135
The life of light bulbs is distributed normally. The variance of the lifetime is 400 and the mean lifetime of a bulb is 540 hours. Find the probability of a bulb lasting for at most 560 hours. Round your answer to four decimal places.
Answers: 2
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Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.
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Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?
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There are 85 apples on the big tree, john picked out 15%. how many did john pick out?
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What is the length of side s of the square shown below?
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The life of light bulbs is distributed normally. The variance of the lifetime is 400 and the mean li...
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