Question

A geophysical firm is acquiring seismic data to investigate the depth to the bedrock beneath a landfill.

When seismic data were acquired, the depth to bedrock could be estimated for 60% of the data sets. However, drilling results revealed that 30% of the time, the depth to bedrock estimated from seismic data was incorrect.

What is the probability that performing a seismic survey in a different portion of the landfill will provide the correct depth to bedrock?

Answer 1

We are given the following probabilities:

We need to find the probability:

Hence the required probability that performing a seismic survey in a different portion of the landfill will provide the correct depth to bedrock = 18%

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