The data set comes from the package lattice but it can be loaded using the file environmental .RData which is available on Canvas. The data set contains daily measurements of ozone concentration, wind speed, temperature and solar radiation in New York City from May to September of 1973 ( 111 observations of 4 features). 1. (2 points) Calculate the correlation matrix of all four variables. Determine which two correlation coefficients are the highest in absolute value. Include the names of the variables that lead to the two highest correlation coefficients in absolute value