The time until failure of an electronic device has an exponential distribution with mean 15 months. If a random sample of five s
uch devices are tested, what is the probability that the first failure among the five devices occurs a after 9 months? b before 12 months?
1 answer:
Answer:
The probability that the first failure occurs among the five devices is given by
(a) 9 months =
(b) 12 months=
Step-by-step explanation:
probability is given as the; number of required outcome/ total number of possible outcome.
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Answer:
x=3
Step-by-step explanation:
5х - 2 = 3х + 4
5х - 3х = 4 + 2
2х = 6
х = 6/2
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Answer:
x =35.
Step-by-step explanation:
x / 20 = 14 / 8
Cross multiply:
8x = 20*14
8x = 280
x = 35.
Answer:
LCM of 95 and 14 is 1330
Step-by-step explanation:
refer to the picture for explanation