Answer : 0.125There are 4 possibilities:1) 3 out of the 4 previous flies have been eaten, in which case the survival chance is 12) 2 out of the 4 previous flies have been eaten, in which case the survival chance is 0.53) 1 out of the 4 previous flies have been eaten, in which case the survival chance is 0.54) none of the previous flies have been eaten, hence survival chance is 0.5Hence, probability of survival is 1 * 0.5 * 0.5 * 0.5 = 0.125
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Answer : 0.125
There are 4 possibilities:
1) 3 out of the 4 previous flies have been eaten, in which case the survival chance is 1
2) 2 out of the 4 previous flies have been eaten, in which case the survival chance is 0.5
3) 1 out of the 4 previous flies have been eaten, in which case the survival chance is 0.5
4) none of the previous flies have been eaten, hence survival chance is 0.5
Hence, probability of survival is 1 * 0.5 * 0.5 * 0.5 = 0.125
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