Nora's treat bag has 5 chocolate bars, 7 peanut butter cups, and 8 sour gummies. If she selects 1 piece of candy at random, determine each probability. 1. P(chocolate bar) 2. P(peanut butter cups) 3. P(sour gummy) 4. P(not sour gummy)​

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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12