Percent of data
Consider a set of test grades with a mean of 80 and a standard deviation of 3. Use Chebyshev's Theorem to find the percent of data that would fall between 74 and 86.
A. at least 88.9%
B. 100%
C. at least 75%
D. at least 93.8%
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In the sum A + B = C, vector A has a magnitude of 11.0 m and is angled 33.5° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 21.5° counterclockwise from the -x direction. What are the magnitude
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