Suppose that a normal distribution has a mean of 20 and a standard deviation of 4. What is the z-score of 13?
1 answer:
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Step-by-step explanation:
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Answer:
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Answer:
28 ft²
Step-by-step explanation:
The area of a circle is , where r = radius. To find the radius, we split the diameter in half.
- 6/2 = 3
- Thus, the radius is 3.
Now, let's find the area of the circle and approximate pi to 3.14.
- 28.26 ≈ 28 ft²
Therefore, the answer is 28 ft².