Libraries Practice Test

In a data analysis project, Maya uses a library (prewritten code) called Pandas to load a large school survey CSV and summarize responses. She writes import pandas as pd then df = pd.read_csv("survey.csv") to create a DataFrame, which lets her filter rows and compute averages efficiently. Based on the scenario described, how does read_csv from Pandas improve efficiency?

A physics student uses a library (reusable tools) called NumPy to compute forces for 1,000 objects at once. After import numpy as np, they store masses and accelerations as arrays and use vector math instead of loops: F = m * a. Using the library mentioned, what is the primary advantage of NumPy for this task?