Two students use different methods to solve this multiplication problem: 12⋅−445 Read each of their methods below and then enter numbers to correctly complete their work. CLEAR CHECK Barbara writes each number as a fraction and then multiplies. 1 4 1 4 • −4 = • = 2 5 2 9 Christopher writes the mixed number as a sum and uses the distributive property. 1 4 1 4 1 1 • −4 = ( −4 + − ) = • + • = + 2 5 2 5 2 2 Barbara's and Christopher's answers will be equal. Write the answer as a mixed number in simplest form.

What is the shape of the height and weight distribution

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.