Question 18 (1 point) In one of the Boston city parks, there has been a problem with muggings in the summer months. A police cadet took a random sample of 7 days (out of the 90-day summer) and compiled the following data. For each day, x represents the number of police officers on duty in the park and y represents the number of reported muggings on that day. X 10 15 16 4 6 18 5 2 1 9 7 8 1 The coefficient of determination or percentage (to one decimal place) of variation in the number of reported muggings on a day that is explained by the variation in the number of police officers on duty in the park on that day is approximately: O-97.9% O 97.9% 97.3% 95.8%