The accompanying data fie contains three variables, x1,x2, and x3 Gick here for the Excel Data File a. Bin the values of x2 into three equalsize groups. Label the groups with numbers 1 (fowest values) to 3 (highest values). How many observations are assigned to group 3 ? b. Bin the values of x2 into three equal-interval groups. Label the groups with numbers 1 (lowest values) to 3 (highest values) How many obsecvations are assigned to group 1 ? c. Bin the values of x into the following three groups $50,000, between 50,000 and 100,000 , and >100,000 Label the groups with nurnbers 1 (owest values) to 3 (highest values). How many observations are assigned to group 3 ? File Home (1) PiottcieD vitw Exerpise 2.14 Beaty SE 9 Typenere to search