• Moody Gardens recorded the monthly rainfall and their umbrella sales for an entire year. The following table shows the inches of rainfall and the number of
umbrellas the store sold each month. The relationship between inches of
rainfall and umbrella sales can be modeled using a linear function.
Month Jan Feb Mar Apr May
Sept. oct. Nov Dec.
Rainfall
2.5 3.1
3.6
0.6
(in.)
1.5 1.4
Umbrell
140 162
Jun.
Aug
Jul.
1.2
4.0
4.3
2.4
1.1
125
132
170
156
103
98
87
84
78
110
a sales
a) Using technology, determine the correlation coefficient for the data to the nearest hundredth.
ma
b) What does the correlation coefficient for the data indicate about the direction and strength of the linear
association between the monthly rainfall and the number of umbrellas sold?
february 3
69°F Clou