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Probability problems based on Z score

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You and your two friends decide to go to Burger King where 90% of the orders are filled accurately. What is the probability that:

a) all three orders are filled accurately?

b) none of the three will be filled accurately?

c) at least two of the three will be filled accurately?

d) What are the mean and standard deviation of this distribution? Interpret these values.

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Solution Summary

The solution provides step by step method for the calculation of probability based on score. Formula for the calculation and Interpretations of the results are also included.

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