Question: Need help with all pls PRACTICE PROBLEMS 1. Find the variance and standard deviation for the five states with the most covered bridges: Oregon: 106

Need help with all pls

PRACTICE PROBLEMS 1. Find the variance and standard deviation for the five states with the most covered bridges: Oregon: 106 Vermont: 121 Indiana: 152 Ohio: 234 Pennsylvania: 347 2. Find the variance and standard deviation of the heights of five tallest skyscrapers in the United States: Sears Tower (Willis Building]: 1450 feet Empire State Building: 1250 feet One World Trade Center: 1776 feet Trump Tower: 1388 feet 2 World Trade Center: 1340 feet 3. Find the variance and standard deviation of the scores on the most recent reading test: 7.7, 7.4, 7.3, and 7.9 4. Find the variance and standard deviation of the highest temperatures recorded in eight specific states: 112, 100, 127, 120, 134, 118, 105, and 110

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