1. In class, we saw how we could use a for loop to calculate the sum of some numbers.
Each of the following loops is an attempt to sum up the numbers from 1 to n (you
can assume n is initialized to some value).  For each case, explain why this doesn't actually
sum the numbers 1 through n.

a.

sum = 0

for i in range(n):
    sum = sum + i

b.

sum = 0

for i in range(n):
    temp = sum + (i+1)

sum = temp

c.

sum = 0

for i in range(n):
	sum = (i+1)

d.

sum = 0

for i in range(n):
	temp = (i+1)
	sum = temp

2. You decide to reimplent the setcolor_random method from class that
randomly sets the fillcolor to one of four different colors, but
you're feeling rebellious and don't use any elifs:

def setcolor_random():
    """ Set the fill color randomly from: blue, purple, red and yellow """
    color = randint(1,4)

    if color == 1:
        fillcolor("blue")
    if color == 2:
        fillcolor("purple")
    if color == 3:
        fillcolor("red")
    else: # color == 4
        fillcolor("yellow")

When you try it, unfortunately, it doesn't quite work right.  What will this function
actually do and what is the problem?