Patty’s Parasols 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 the inches of rainfall and umbrella sales can be modeled using a linear function.MonthJan.Feb.Mar.Apr.MayJun.Jul.Aug.Sept.Oct.Nov.Dec.Rainfall (in.)2.53.14.04.33.62.41.20.61.51.41.12.6Umbrella sales13214016217015610398878478110125 Using technology, determine the correlation coefficient for the data to the nearest hundredth. Explain the steps you used.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?

1. The correlation value is obtained using EXCEL. The software procedure is given below: Enter the…

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Patty’s Parasols 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 the inches of rainfall and umbrella sales can be modeled using a linear function.

Month	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sept.	Oct.	Nov.	Dec.
Rainfall (in.)	2.5	3.1	4.0	4.3	3.6	2.4	1.2	0.6	1.5	1.4	1.1	2.6
Umbrella sales	132	140	162	170	156	103	98	87	84	78	110	125

Using technology, determine the correlation coefficient for the data to the nearest hundredth. Explain the steps you used.
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?

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