For questions 1 - 4, use the following data set to calculate quartiles and test for outliers A school in Springfield recorded the number of rain days per month for each month during the school year. The data are displayed below: 17 10 42 18 20 6 15 22 15 1. Based on the collected data, 2. Based on the collected data, what is the upper (or third) what is the IQR (interquartile quartile of the number of days of range) of the number of days of rain for the given nine months? rain for the given nine months? Answer choices: Answer choices: 12.5 8.5 . 17 33.5 21 16 22 17 3. What is the upper cutoff used 4. How many outliers are there in to determine if there are any this data set? outliers in this data set? Answer choices: Answer choices: None 1.5 - (21 - 12.5) WN - 21 + 1.5 - (21 - 12.5) 21 - 1.5 - (21 - 12.5) 12.5 + 1.5 . (21 - 12.5)