A technician is working in an environmental research laboratory. She has 1000 soil samples and 42 of them contain hazardous material, The technician randomly picks a soil sample. Let the event A and the event be as follows. A: The sample the technician picks contains hazardous material.
B: The sample the technician picks does not contain hazardous material.
Find the following probabilities. Write your answers as decimal numbers and do not round.
i. P(U)
ii. P(B)