En la biblioteca hay 400 libros. Si el 25% son de matemáticas. Cuantos libros de matemáticas hay?
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Solution: We are given:
We have to find the amount of water that represents the top 97.5%.
We need to find the z value corresponding to probability to 0.975. Using the standard normal table, we have:
Now using the z score formula, we have:
Therefore, 129.4 ounces amount of water represents the top 97.5%