CSE 160 Section 02 Solutions
	
1. 
	words = ["hello", "world", "python", "yellow"] 
	l_count = 0
	for word in words:
    		for letter in word:
        		if letter == 'l':
            			l_count = l_count + 1    
	print l_count 
	
	
2. 
	def over_twenty(ages):
		total = 0
		for age in ages:
			if age > 20:
				total = total + 1
		return total
		
		
3. 
	def age_groups(ages):
		thirties = 0
		twenties = 0
		under_twenty = 0
		for age in ages:
			if age >= 30:
				thirties = thirties + 1
			elif age >= 20
				twenties = twenties + 1
			else
				under_twenty = under_twenty + 1
		print thirties
		print twenties
		print under_twenty
	
	
4. 
	def odd(num):
		if num % 2 == 1:
			return True
		else:
			return False
	
	
5. 
	def avg_age(ages):
		total = 0
		for age in ages:
			total = total + age
		avg = float(total) / len(ages)
		return avg
	
	
6. 
	def max_height(class_lst):
		cur_max = 0
		for student in class_lst:
			student_height = get_height(student)
			if(student_height > cur_max):
				cur_max = student_height
		return cur_max
		
	Type when returning: Int
	Type when printing: None