suppose that al knows that the probability of an investigation is 0.70 how low must the probability of water's completing its research on time be so that the probability of litres being awarded the contract is at least 0.65?

To answer this question, we need some additional information about the relationship between the investigation, water completing its research on time, and the probability of Litres being awarded the contract. Specifically, we need to know how these variables are related and what factors contribute to Litres being awarded the contract.

Please provide more information or clarify the relationship between these variables so that I can help you further.