A maintenance firm has gathered the following information regarding the failure mechanisms for air conditioning systems

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1) A maintenance firm has gathered the following information regarding the failure mechanisms for air oonditloning systems electrical gas leaks problem Yes Yes 56 No 14 Total 70 a} If this is a representative sample of AC failure, nd the probability that: b} The failure involves a gas leak. c) There is an electrical problem given that there was a gas leak. cl} There is at least one of the failures. e} Does gas leak depend on electrical failure? Explain? f} Are the gas leak and electrical failure mutually exclusive? ? Explain