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Photo by Jannis Lucas on Unsplash.

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.

# Re-run this cell 
import pandas as pd

# Read in the data
schools = pd.read_csv("schools.csv")

# Preview the data
schools.head()

# Start coding here...
# Add as many cells as you like...
max_score = 800
best_math = 0.8 * max_score
best_math_schools = schools[schools['average_math'] >= best_math].sort_values('average_math', ascending=False)
best_math_schools = best_math_schools[['school_name', 'average_math']]
best_math_schools
schools['total_SAT'] = schools['average_math'] + schools['average_reading'] + schools['average_writing']
top_10_schools = schools.sort_values('total_SAT', ascending=False)[:10]
top_10_schools = top_10_schools[['school_name', 'total_SAT']]
top_10_schools
single_borough = schools.groupby('borough').agg(
    num_schools=('total_SAT', 'size'),
    average_SAT=('total_SAT', 'mean'),
    std_SAT=('total_SAT', 'std')
).reset_index()
largest_std_dev_borough = single_borough.loc[single_borough['std_SAT'].idxmax()]
largest_std_dev = pd.DataFrame({
    'borough': [largest_std_dev_borough['borough']],
    'num_schools': [largest_std_dev_borough['num_schools']],
    'average_SAT': [round(largest_std_dev_borough['average_SAT'], 2)],
    'std_SAT': [round(largest_std_dev_borough['std_SAT'], 2)]
})
largest_std_dev