According to the Data Released by a City's Chamber of Commerce

question 9

Short Answer

According to the data released by a city's Chamber of Commerce, the weekly wages of factory workers are normally distributed with a mean of $380 and a standard deviation of $50. Round your answers to four decimal places, if necessary.
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Find the probability that a worker selected at random from the city has a weekly wage of less than $300.
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__________
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Find the probability that a worker selected at random from the city has a weekly wage of more than $460.
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__________
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Find the probability that a worker selected at random from the city has a weekly wage of between $350 and $450.
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__________

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Definitions:

Major Organic Product

The primary substance produced in the highest yield during an organic chemical reaction.

Major Product

The primary product formed in the greatest amount during a chemical reaction.

Saponification

A chemical reaction involving the hydrolysis of fats or oils by an alkali to produce glycerol and soap.

Ester Hydrolysis

A chemical reaction in which an ester is converted into its constituent alcohol and acid by the action of water or a hydroxide ion.