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kodGreya [7K]
3 years ago
9

A random variable is normally distributed with a mean of 25 and a standard deviation of 5. if an observation is randomly selecte

d from the distribution, determine two values of which the smallest has 25% of the values below it and the largest has 25% of the values above it.
Mathematics
1 answer:
Naddika [18.5K]3 years ago
7 0
<span>A random variable is normally distributed with a mean of 25 and a standard deviation of 5. if an observation is randomly selected from the distribution, determine two values of which the smallest has 25% of the values below it and the largest has 25% of the values above it.</span>
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Answer:

Option C is correct

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Step-by-step explanation:

Area of square(A) is given by:

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where, s is the side of the square.

As per the statement:

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then;

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⇒s = \sqrt{360} =18.973666

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then;

P = 4 \cdot 18.973666 = 75.894664 \approx 76 ft

Therefore, 76 feet molding does he need.

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