$(1)$ Import "MSA$\_$M$2019\_$dl$.$xlsx$"$ and inspect the data $($i$.$e$.,$ understand what variables are available$).$

$[]$: #Your code here... You can add additional cells at will

$(2)$ Filter out the observations where $"$o$\_$group" is "major".

$[]$: #Your code here... You can add additional cells at will

$(3)$ Select three variables from this data: "area$\_$title" $($city name$),$ "occ$\_$title" $($occupation title$),$ and "jobs$\_1000"($employment per $1,000$ people$).$

#Your code here... You can add additional cells at will

$(4)$ Convert the data type of "jobs$\_1000"$ as numeric

Hint: Use pd$.$to$\_$numeric$()$