27. The probability that an archer hits the target when it is windy is equal to 1/5, when it is not windy his probability of hitting the target is 2/5. On any shot the probability of gust of wind is 2/5. the probability that there is gust of wind on the occasion when he hits the target is equal to ?

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Q. The probability that an archer hits the target when it is windy is 0.4; when it is not windy, her probability of hitting the target is 0.7. On any shot, the probability of a gust of wind is 0.3. The probability that she hits the target on first shot is

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when it is not windy, her probability of hitting the target is

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