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30.11.2019 •
Mathematics
Acertain component is critical to the operation of an electrical system and must be replaced immedi- ately upon failure. if the mean lifetime of this type of component is 100 hours and its standard devi- ation is 30 hours, how many of these components must be in stock so that the probability that the system is in continual operation for the next 2000 hours is at least .95?
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Ответ:
n=23
Step-by-step explanation:
Answer explained in the attachment .
Ответ:
7.The decimal expression for 5 rupees 5 paise is .
(1 Point)
₹ 5.5
₹ 5.005
₹ 5.05
₹ 55
Step-by-step explanation:
7.The decimal expression for 5 rupees 5 paise is .
(1 Point)
₹ 5.5
₹ 5.005
₹ 5.05
₹ 55