Mathematics, 25.11.2021 14:20 ricardodeleon152
36 heat lamps are connected in a greenhouse so that when one lamp fails, another takes over immediately. (Only one lamp is turned on at any time.) The lamps operate independently, and each has a mean life of 50 hours and standard deviation of 4 hours. If the greenhouse is not checked for 1836 hours after the lamp system is turned on, what is the probability that the lamp system is still working (one lamp is burning) at the end of the 1836-hour period
Answers: 2
Mathematics, 21.06.2019 22:20
The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22
Answers: 1
Mathematics, 22.06.2019 02:00
Light travels at 186,000 miles per second. light takes about 1 1? 3 seconds to travel from the earth to the moon. calculate the distance between the earth and the moon based on the speed of light.
Answers: 2
36 heat lamps are connected in a greenhouse so that when one lamp fails, another takes over immediat...
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