# Probability: Binomial and Normal Distribution

3. A new county hospital is attempting to determine whether it needs to add a particular specialist to its staff. Five percent of the general hospital population in the county contracts the illness the specialist would treat. If 12 patients check into the hospital in a day, what is the probability that 4 or more will have the illness?

4. A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. What is the probability that a loaf is larger than 21 ounces?

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#### Solution Summary

The solution provides step-by-step method for the calculation of binomial and normal probabilities. Formula for the calculation and Interpretations of the results are also included.

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