Mathematics, 18.04.2020 01:59, andrwisawesome0
Daniel and Seema are exploring a cave, and each have brought a flashlight. The lifetimes of their flashlight batteries can be considered independent exponential random variables with rate parameters s λd (where D denotes Daniel and S denotes Seema). Suppose one of their batteries has just gone out. What is the expected additional lifetime of the other person's battery?
A) Solve for the remaining lifetime in terms of λD and λS. Show all work and come up with a general formula.
B) Suppose Daniel's flashlight battery lasts, on average, for 43 hours and Seema's for 52 hours, on average. Given that one of their flashlights has just gone out, how long do we expect the other flashlight battery to last?
Answers: 1
Mathematics, 21.06.2019 13:30, cogger9348
Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.
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Mathematics, 21.06.2019 18:30, 91miketaylor
Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?
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Daniel and Seema are exploring a cave, and each have brought a flashlight. The lifetimes of their fl...
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