Question

数学期望题！

An insurance company is offering a special deal to its clients which company would pay $400 to replace a stolen 65-inch LED television that is lost due to theft. In turn, the insurance company would charge $25 per year for this policy. The insurance company has determined that the probability of such television theft is 0.05. What is the expected gain per policy for the insurance company in any given year?
这题怎么做。。。

Answer 1

$25-0.05X$400=$5

Answer 2

我没看见