OpenStax, Statistics §5.3 The Exponential Distribution (Optional) · Exercise 32 · Probability · Continuous distributions
The Exponential Distribution (Optional) · Exercise 32
The average lifetime of a certain new cell phone is three years. The manufacturer will replace any cell phone failing within two years of the date of purchase. The lifetime of these cell phones is known to follow an exponential distribution.
What is the decay rate?
(a) 0.3333
(b) 0.5000
(c) 2
(d) 3
OpenStax, Statistics · §5.3 The Exponential Distribution (Optional) · Exercise 32
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