Estimating Chip Failure Time: Geometric MLE

[EvLer]

Homework Statement

time till first failure of a chip is to be estimated. 3 such chips were tested, they worked for 30, 34, 33 days without failure. Find MLE of the parameter.

The Attempt at a Solution

first i want to confirm this: is this geometric distribution?

 

[Kreizhn]

I'm not too sure. It looks like you could approximate it and find the maximum likelyhood using the exponential distribution since you could very well be dealing with poisson-distributed events.