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An experiment consists of taking 12 shots at a target and counting the number of hits. When this experiment was repeated a large number of

An experiment consists of taking 12 shots at a target and counting the number of hits. When this experiment was repeated a large number of times the mean number of hits was found to be 3. Calculate (a) The probability of hitting the target with a single shot, (b) The standard deviation of the number of hits in an experiment.

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