nodeDistrictSections.js

var request = require('request');
var options = {
  method: 'GET',
  json: {},
  uri: 'https://api.clever.com/v1.1/districts/4fd43cc56d11340000000005/sections',
  headers: {
    Authorization: 'Bearer DEMO_TOKEN'
  }
};

request(options, function(err, response, body) {
  var numberOfSections, studentTotal, avgStudentsPerSection;

  numberOfSections = body.data.length;

  studentTotal = body.data.reduce(function(prevValue, currValue) {
    var studentCountSection = currValue.data.students.length;
    var studentCountTotal = studentCountSection + prevValue;
    return studentCountTotal;
  }, 0)

  avgStudentsPerSection = studentTotal / numberOfSections;

  console.log("number of sections");
  console.log(numberOfSections);
  console.log("total number of students in all the sections");
  console.log(studentTotal);
  console.log("average number of students per section");
  console.log(avgStudentsPerSection)

});