need a-d please

The accompanying data file contains three numerical variables, x1,x2, and x3. Click here for the Excel Data File a. For x1, how many of the observations are greater than 30 ? b. Sort by x1, then by x2, and then by x3, all in ascending order. Note that all variables are sorted simultaneously. After the variables have been sorted, what is the first observation for x1,x2, and x3 ? c. Sort by x1 in descending order, then by x2 in descending order and then by x3 in ascending order. Note that all variables are sorted simultaneously. After the variables have been sorted, what is the first observation for x1,x2, and x3 ? d. How many missing values are there in x1,x2, and x3 ? Font 39404142434445313862427282568873599240537046583146143150132101135112 4647484950515253545556575859606162636465666721211182136142394126251841612259142511267174848084818033567916554062662041025755280749284525991610922941551401711571661231389921695153158144132140156148192201170 68697071727374757677787980818283848586878889909112253019225483320143324138720281419182822353813454021864222798732656437865966203254863430510290750412629167842180119114154124130133189178160157163159163160140159128169137139125126151 The accompanying data file contains three numerical variables, x1,x2, and x3. Click here for the Excel Data File a. For x1, how many of the observations are greater than 30 ? b. Sort by x1, then by x2, and then by x3, all in ascending order. Note that all variables are sorted simultaneously. After the variables have been sorted, what is the first observation for x1,x2, and x3 ? c. Sort by x1 in descending order, then by x2 in descending order and then by x3 in ascending order. Note that all variables are sorted simultaneously. After the variables have been sorted, what is the first observation for x1,x2, and x3 ? d. How many missing values are there in x1,x2, and x3 ? Font 39404142434445313862427282568873599240537046583146143150132101135112 4647484950515253545556575859606162636465666721211182136142394126251841612259142511267174848084818033567916554062662041025755280749284525991610922941551401711571661231389921695153158144132140156148192201170 68697071727374757677787980818283848586878889909112253019225483320143324138720281419182822353813454021864222798732656437865966203254863430510290750412629167842180119114154124130133189178160157163159163160140159128169137139125126151