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Physics Still using the force vs. time graph you created in Part I, compare the force necessary to keep the block sliding compared to the force necessary to start the slide. How does your answer compare to your answer to Preliminary Question 3? The coefficient of friction is a constant that relates the normal force […]
Python Given a clustering assignment on four 2-dimensional points Pt Feature 1 Feature 2 Cluster A 2 2 1 B 0 2 1 C -4 -1 2 D -3 -2 2 (a) Calculate the silhouette coefficient for point B. (b) If this assignment is obtained right after an iteration of K-means clustering (which may or […]
Statistics 1-A sample of 12 houses that were sold last week in San Juan is selected. Can we conclude that, as the size of the house (reported in thousands of square feet in the table below) increases, so does the sale price. the following table in thousands of square feet), the selling price (reported in […]
Topic: Real estate Summary Statistics for MAT 240 Real Estate Data (for dataset in Modules 2, 3, and 4) n Mean Median Std. Dev. Min Q1 Q3 Max Listing price ($) 1,000 342,365 318,000 125,914 135,300 265,250 381,600 987,600 Cost per square foot ($) 1,000 169 166 41 71 139 191 344 Square feet 1,000 […]
Description The coefficient of determination, r2, indicates the statistical relationship between two variables. Frequently, if there is a high correlation between two variables, we can safely assume that one causes the other. But this is not always the case—sometimes the correlation is spurious, meaning invalid and misleading. Researchers found that from 1931 to 1971 there […]
US economy : Is there a tradeoff between equity and efficiency? If so, what’s more important: equity or efficiency? How equitable and efficient is the US economy? Is the Gini coefficient a good measure of economic inequality? What aspects of inequality does it miss? How and why does income inequality vary across cities, state, or […]
• To find out how genetically related the cholesterol level is, they measured the cholesterol level of eight mothers and their daughters. They obtained the following data. • • Mother Her daughter • 157 154 • 189 150 • 201 184 • 174 170 • 159 158 • 213 192 • 149 143 • 143 […]
Description Respond to the following short answer questions from Morgan, Leech, Gloeckner, & Barrett textbook: D6.1 Interpreting Correlations. In Output 9.2, what do the correlation coefficients tell us? What is the r^2 for the Pearson correlation and what does it mean? Compare the Pearson and Spearman correlations on both correlation size and significance level and […]
1.A student is analyzing how two variables are correlated: size of committee and “efficiency” of committee. He reports to his friends that he had a correlation coefficient (r) of -0.85. What does the negative sign on the “r” tell us? (Hint: Don’t just say that the relationship is negative – explain what that means!!) 2. […]
Description Write a literature review discussing the different ways to calculate the drag coefficient of a body fully immersed in a moving fluid in 4 different ways: 1. Applying empirically derived drag coefficient data from the literature. 2. Direct measurement of the force on the body / Finding the loss of momentum of the fluid. […]
