Speedy-Go, Inc., produces custom-built engines for automobile race teams. The most recent project undertaken by Speedy-Go requires 14 different activities. Speedy-Go's sponsor would like to determine the total project completion time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table. What is the probability of being done in 53 days? ________

Your answer should be carried out to three decimal places.

Activity	Immediate Predecessor(s)	Optimistic Time	Most Likely Time	Pessimistic Time
A	-	4	6	7
B	-	1	2	3
C	A	6	6	6
D	A	5	8	11
E	B,C	1	9	18
F	D	2	3	6
G	D	1	7	8
H	E,F	4	4	6
I	G,H	1	6	8
J	I	2	5	7
K	I	8	9	11
L	J	2	4	6
M	K	1	2	3
N	L,M	6	8	10