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le Edit View History Bookmarks Window Help mathxl.com 2018 Spring MAT 124 Statistics Jenna McMahon& 3/ Homework: Section 3.3 Chebyshev's Rule and the Empirical Score: 0 of 1 pt 5 of 11 (4 complete) HW Score: 24.249 3.3.115 A quantitative data set has size 80. At least how many observations lie within four standard deviations to either side of the mean? At leastobservations lie within four standard deviations to either side of the mean. (Round up to the nearest whole number.) All parts showing Clear All

Explanation / Answer

here frm Chebychev theorum (1-1/k2)*100 =(1-1/42)*100 =93.75% values fall within 4 std deviation from mean

theefore at least 80*0.9375 ~ 75 observations lie within 4 std deviation .........

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