The probability distribution for the number of defects during an 8-hour shift on the assembly line at Wanda's Wooden Widgets is as shown in the chart below.

x	0	1	2	3	4	5
P(X = x)	0.50	0.25	0.15	0.06	0.03	0.01

After 2 hours of a particular shift, 2 defects have already been detected. What is the probability that there will be less than a total of 4 defects detected during the entire shift?

1. 1.00
2. 0.96
3. 0.84
4. 0.25