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Mathematics, 25.11.2019 14:31 biancatay
Acompany makes batteries with an average life span of 300 hours with a standard deviation of 75 hours. assuming the distribution is approximated by a normal curve fine the probability that the battery will last: (give 4 decimal places for each answer)
a. less than 250 hours
b. between 225 and 375 hours
c. more than 400 hours
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Acompany makes batteries with an average life span of 300 hours with a standard deviation of 75 hour...
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