Jose predicted that he would sell 48 umbrellas. He actually sold 72 umbrellas. What are the values of a and b in the table
below? Round to the nearest tenth if necessary
Percent Error
Approximate value
Exact value
Error
-24
Absolute error
Ratio
Item
Umbrellas
Percent error
24
3.333%
42. -50%
98.0-67.7%
57.0 - 100%
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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.

Find the distance between (0,5) & (-4,2)

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red