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The point estimate is the mid-point of the interval:
The margin of error is the difference between the endpoints of the interval and the mid-point.
The margin of error is the difference between the endpoints of the interval and the mid-point.
Answer:
38.465
Step-by-step explanation:
Area of circle =
diameter= 7
radius is half of the diameter
Radius =7÷2 = 3.5
Area = 3.14 × 3.5 × 3.5
= 38.465 inch squared