Figure out gender ratio from an array of given names
Instructions for getting a csv file of all your LinkedIn contacts:
Export LinkedIn connections (https://www.linkedin.com/people/export-settings)
Import the file into a Google Sheet
Delete everything but the first name field ("Given Name")
Export the sheet as a csv, named mycontacts.csv
If you're on a Mac, you may need to change the formatting slightly:
cat mycontacts.csv | col -b > mycontacts.tmp
mv mycontacts.tmp mycontacts.csv
NB the genderize API allows 1000 free queries per day; if your list is over 1000 names, you can either split it into lists of 1000 and run them over a few days, or you can upgrade to a paid account.