Context
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Every year, American high school students take SATs, which are standardized tests intended to measure literacy, numeracy, and writing skills. There are three sections - reading, math, and writing, each with a maximum score of 800 points. These tests are extremely important for students and colleges, as they play a pivotal role in the admissions process.
Analyzing the performance of schools is important for a variety of stakeholders, including policy and education professionals, researchers, government, and even parents considering which school their children should attend.
You have been provided with a dataset called schools.csv, which is previewed below.
You have been tasked with answering three key questions about New York City (NYC) public school SAT performance.
Data Analysis with Python (Pandas and Basic Statistics)
# Re-run this cell
import pandas as pd
# Read in the data
schools = pd.read_csv("schools.csv")
# Preview the data
schools.head()
# 1. Schools with the best math results
best_math_schools = schools[schools['average_math'] >= 640][['school_name', 'average_math']].sort_values('average_math', ascending=False)
print('\n The best ten math results of NYC schools are: ')
print(best_math_schools)
# 2.1 Calculate total_SAT per school
schools['total_SAT'] = schools['average_math'] + schools['average_reading'] + schools['average_writing']
# 2.2 Top 10 performing schools based on combined SAT scores
top_10_schools = schools.sort_values('total_SAT', ascending=False)[['school_name', 'total_SAT']].head(10)
print('\n The top 10 performing schools based on the combined SAT scores are: ')
print(top_10_schools)
# 3.1 Borough with the largest standard deviation in combined SAT score
borough = schools.groupby('borough')['total_SAT'].agg(['count', 'mean', 'std']).round(2)
# 3.2. Filter for max std and make borough a column
largest_std_dev = borough[borough['std'] == borough['std'].max()]
# 3.3. Rename the columns for clarity
largest_std_dev = largest_std_dev.rename(columns={'count':'num_schools','mean':'average_SAT','std':'std_SAT'})
print('\n The borough that has the largest standard desviation (std) in the combinated SAT score is: ')
print(largest_std_dev)