The anza-borrego desert state park is one of the best places in the united states for viewing stars. during one 50-day period, cloud cover obstructed nighttime views just 6% of the time. based on that sample, how many days a year would you predict that clouds there will interfere with stargazing? complete the explanation.

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.