Question

jan 8 new 0 0
jan 15 1st quarter 7 0.5
jan 22 full 13 1
jan 30 last quarter 22 0.5
feb 7 new 30 0
feb 14 1st quarter 37 0.5
feb 21 full 44 1
feb 29 last quarter 52 0.5
mar 7 new 59 0
mar 14 1st quarter 66 0.5
using the information above, plot the data points. does this data indicate that a sine regression may be appropriate in this case? explain.
a. yes, it shows repeated and periodic behavior.
b. yes, it shows a curve increasing from left to right.
c. no, the points are random.
d. no, the points depict a parabola.

Explanation:

Sine regression is appropriate for data with periodic behavior. The moon - phase data shows a repeating pattern (new - first quarter - full - last quarter - new) over time, which is periodic.

Answer:

a. Yes, it shows repeated and periodic behavior.