Compute Probabilities Involving Permutations and Combinations
-A Box Contains 26 $\frac { 1 } { 14,950 } ; \frac { 1463 } { 2990 }$

Multiple Choice

Compute Probabilities Involving Permutations and Combinations
-A box contains 26 widgets, 4 of which are defective. If 4 are sold at random, find the probability that (a) all are defective (b) none are defective.

A) $\frac { 1 } { 14,950 } ; \frac { 1463 } { 2990 }$
B) $\frac { 2 } { 13 } ; \frac { 11 } { 13 }$
C) $\frac { 1 } { 358,800 } ; \frac { 1 } { 89,700 }$
D) $\frac { 1 } { 26 } ; \frac { 2 } { 13 }$