Micromasters in Statistics and Data Science - MITx. I didn't realize that it involve this much maths when I started. It is really pushing my boundaries by a hug

Micromasters in Statistics and Data Science - MITx. I didn't realize that it involve this much maths when I started. It is really pushing my boundaries by a huge margin. Machine learning - how it works behind the scenes was really insightful. (Currently working as a PHP backend developer, Drupal.)