The random variable X, representing the number of accidents in a certain intersection in a week, has the following probability distribution:

x	0	1	2	3	4	5
P(X=x)	0.20	0.30	0.20	0.15	0.10	0.05

By the third day of a particular week, 2 accidents have already occurred in the intersection. What is the probability that there will be less than a total of 4 accidents during that week?