Mathematics, 15.11.2019 20:31 esnyderquintero
The life of a red bulb used in a traffic signal can be modeled using an exponential distribution with an average life of 24 months. the maintenance worker inspects the signal every year.
• what is probability that the red bulb will need to be replaced at the first inspection?
• if the bulb is in good condition at the end of 18 months, what is the probability that the bulb will be in good condition at the end of 24 months? hint: use p(a | b) = p(a∩b) p(b)
• if the signal has six red bulbs, what is the probability that atleast one of them needs replacement at the first inspection? assume distribution of lifetime of each bulb is independent.
Answers: 1
Mathematics, 21.06.2019 14:50
Name the most appropriate metric unit for each measurement like a length of an carrot
Answers: 2
Mathematics, 21.06.2019 19:30
Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?
Answers: 2
Mathematics, 21.06.2019 23:10
Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?
Answers: 3
Mathematics, 21.06.2019 23:40
When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?
Answers: 1
The life of a red bulb used in a traffic signal can be modeled using an exponential distribution wit...
Mathematics, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20
History, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20
Physics, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20
English, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20
English, 27.05.2021 20:20
Mathematics, 27.05.2021 20:20