3 years ago

The scale for a ballroom is 1 inch : 7 feet. What is the actual area of the ballroom in square feet?

Mathematics

1 answer:

kotegsom [21]3 years ago

3 0

Answer:

30 square feet

Step-by-step explanation:

to find the area, simply multiply 15 and 14.

now the answer is 210 inches.

Now to convert to scale, divide 7 into 210.

The area of the ballroom is 30 feet.

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Suppose that quiz scores in a beginning statistics class have a mean of 7.5 with a standard deviation of 0.4. Using Chebyshev's

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Chebyshev's theorem says that the probability that a random variable differs from its mean by some multiple of the standard deviation is bounded below as

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Then the theorem says

$P\left(|X - \mu| \le \dfrac{\sigma}{\sqrt{0.889}}\right) \ge 0.889$

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