Suppose a (, o) model is being used for a sonar's detection of a target by discrete glimpses. When 0-5 dB, the last column of the following table shows the single-glimpse detection probabilities: Time (hours) Glimpse i 0.1 a = 0.2 0.3 0.4 0.5 0 1 2 3 4 Pr{signall excess > 0 on glimpse i 0.016 0.195 0.235 0.345 0.27 Assuming that the probability values follow a unimodal sequence, what is a value when = 0.5 jump per hour? Find the probability that the sonar detects the target on at least 1 of the 5 glimpses. Fd4= What would the cumulative detection probability be if the glimpses were independent of each other? F4 (independent)=