Peter goes to office either by train, scooter or car, the probabilities of which being 0.28, 0.18, and 0.54, respectively. The probabilities that he reaches office in time, if he takes train, scooter or car are 0.39. 0.25 and 0.4 respectively. If he

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A: P(Z=0.77)

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A: degrees of freedom, df= 4

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A: From the given information,

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A:

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A:

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A: The following solution is provided below: