Find the indicated probability. Round your answer to 6 decimal places when necessary.
A sample of 4 different calculators is randomly selected from a group containing 42 that are defective
and 22 that have no defects. What is the probability that all four of the calculators selected are
defective?

Select one:

a.15.3014
b. 0.1762
c. 0.1855
d. 0.0753