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If the standard deviation of a variable is 8, what is the variance?
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Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?
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One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?
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If the standard deviation of a variable is 8, what is the variance?...
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