View All num of num See all Photos Goldman Sachs www.goldmansachs.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 2.0k Reviews 7.5k Salaries 2.1k Interviews 1.4k Jobs Follow Add Review or Salary Follow Add Review or Salary Interview Question Summer Technology Analyst Interview Jersey City, NJ Goldman Sachs How would you show a correlation between two types of data? Tags: technical, probability See more , See less 8 Answer Add Tags Answer Interview Answer 3 Answers ▲ 0 ▼ ***Probably asked based on my prior research experience***I kinda fudged this one. I said that I'd compute the covariance of the two datasets. My interviewer took the answer but didn't show whether or not he liked that answer. Interview Candidate on Mar 16, 2012 ▲ 0 ▼ Covariance and correlation coefficient are based on Gaussian assumption, Spearman's rank correlation maybe a better choice if they are totally different types of data. A scatterplot before calculating these statistics is recommended. Arnie on May 17, 2012 ▲ 1 ▼ if two are both quantitative variables, use correlation. if both are categorical, use two way table. if one is quantitative and the other is categorical, then convert the quantitative one to a categorical one then make a two way table. T on Mar 20, 2013 Interviews > Summer Technology Analyst > Goldman Sachs Add Answers or Comments To comment on this, Sign In or Sign Up.