2 years ago

325.4 miles on 17.3 gallons

Mathematics

1 answer:

Zielflug [23.3K]2 years ago

6 0

<span>188 miles per gallon</span>

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aalyn [17]

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Step-by-step explanation:

Given : pH measurements of a chemical solutions have

Mean : $\mu=6.8$

Standard deviation : $\sigma=0.02$

Let X be the pH reading of a randomly selected customer chemical solution.

We assume pH measurements of this solution have a nearly symmetric/bell-curve distribution (i.e. normal distribution).

The z-score for the normal distribution is given by :-

$z=\dfrac{x-\mu}{\sigma}$

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$P(z$

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