An expert is starting with 100 bacteria cells she expects the number of cells to be given by a fomular c=100(2)^t/15 where t is number of hours since the experiment started After how many hours would the scientist expect to have 300 bacteria cells when a particular bacteria colony doubles its population every 15 hours?

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.