Formula
Cumulative claim probability = 1 − (1 − annual probability)years. Expected tradeoff value = premium savings × years − benefit reduction × cumulative claim probability.
What the result means
A positive result favors the modeled premium savings on an expected-value basis; a negative result means the expected benefit reduction is larger.
Term life insurance generally does not use deductibles like property or health insurance. Use this only for a real proposal that explicitly reduces the death benefit in exchange for premium savings.