Detecting a burglar, A local bank wants to install motion

Detecting a burglar

Reference no: EM1393789

A local bank wants to install motion detector burglar alarms. Each has a 70% chance of detecting a burglar. If the bank wants to be 99% certain of detecting a burglar how many need to be installed?

Reference no: EM1393789

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Detecting a burglar : A local bank wants to install motion detector burglar alarms. Each has a 70% chance of detecting a burglar. If the bank wants to be 99% certain of detecting a burglar how many need to be installed?

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