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Serious worker injuries at a steel fabricating company average 2 per year.

Serious worker injuries at a steel fabricating company average 2 per year.
a.) Given that the safety conditions at the plant remain the same next year, what is the probability that the number of serious injuries will be less than 2?
b.)How many serious injuries would you expect next year?
c.) What is the variance for the number of serious injuries next year?

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