Okay, let’s tackle this. So Andrea has skills in signal processing, machine learning, and data analysis, which are in demand. She’s also proficient in Python and Matlab, which are popular tools in the field. Location is Los Angeles, California, which is a hub for tech companies. According to national averages, data scientists with these skills can charge around $100–$150 per hour. However, considering her expertise and location, I’d estimate her rate to be around $125 per hour, which is slightly below the average but still competitive.