The first four terms of a sequence are shown below:

8, 5, 2, −1

which of the following functions best defines this sequence? (5 points)

a
f(1) = 8, f(n + 1) = f(n) + 3; for n ≥ 1

b
f(1) = 8, f(n + 1) = f(n) − 5; for n ≥ 1

c
f(1) = 8, f(n + 1) = f(n) + 5; for n ≥ 1

d
f(1) = 8, f(n + 1) = f(n) − 3; for n ≥ 1

How many $20 bills do you need to have to make $280

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

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.