The local newspaper has letters to the editor for 40 people if this is the number represents 5% of all the newspaper readers how
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First, find the mean. You'll need it to compute the variance.
The variance of the sample is then computed with the formula
The standard deviation is the square root of the variance, so
The variance of the sample is then computed with the formula
The standard deviation is the square root of the variance, so
Answer:
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The pentagon's area is the sum of the 5 triangles that comprise it. This is
where the factor of 2 accounts for the top and bottom. The walls have an area of 5 rectangles
where the factor of 2 accounts for the top and bottom. The walls have an area of 5 rectangles