3 years ago

What the answer please

Mathematics

2 answers:

Nady [450]3 years ago

7 0

It is b please mark Brainliest

devlian [24]3 years ago

5 0

Answer: A

Step-by-step explanation:

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a. 19.68 miles per gallon.

b. 26.32 miles per gallon.

Step-by-step explanation:

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Standard deviation (σ) = 4.9 mpg

In a normal distribution, for any length X, the z-score is determined by the following expression:

$z=\frac{X-\mu}{\sigma}$

In a normal distribution, the 25th percentile (first quartile) of a normal distribution has a corresponding z-score of z = -0.677 and the 75th percentile has a corresponding z-score of z = 0.677

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3 years ago

What the answer please​

What the answer please