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If the number of dropouts for a school district has been 250 per year with a...

If the number of dropouts for a school district has been 250 per year with a standard deviation of 25, what percentage of dropouts next year will be:

a. Between 225 and 350

b. Between 275 and 325

c. Between 175 and 225

d. Between 200 and 315

Math   Statistics-And-Probability   
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