log_data.txt has grading data for 20 assignments in the following format: fname, lname, score (assume last names are distinct)

data_rdd = sc.textFile("log_data.txt")

grades_rdd = data_rdd.split(',').map(lambda grade: tup(str(grade[1]), int(grade[2]))).reduceByKey(lambda grade1, grade2: grade1 + grade2).map(lambda average: (average[0], average[1]/20))

True or false: the code above will calculate the average score for each student based on their last name. Note: I didn't actually run this code, so you may assume the syntax is correct without running it.