Alice has purchased a new iPad, which is defective; it catches fire spontaneously. Let
X = the amount of time in years until the iPad catches fire, and suppose X Exp(5).
Every 3 years Apple releases a new iPad model and Alice dutifully replaces her
old iPad with a new one. What is the probability that Alice will replace her iPad
before it catches re? (Answer: 0:550671)
I get e^(-3/5) which is close to the answer, but not quite right. What am I doing wrong? Thanks!
>>> Probability using the Exponential distribution?