The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the
Probability that he or she is a factory worker?
A) $\frac { 2 } { 5 }$
B) $\frac { 5 } { 8 }$
C) $\frac { 1 } { 8 }$
D) $\frac { 1 } { 4 }$

Question

The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the
Probability that he or she is a factory worker? 
A) $\frac { 2 } { 5 }$
B) $\frac { 5 } { 8 }$
C) $\frac { 1 } { 8 }$
D) $\frac { 1 } { 4 }$

Quizplus · Accepted Answer

The total number of staff is 4 + 20 + 4 + 2 + 50 = 80. The probability of selecting a factory worker is the number of factory workers divided by the total number of staff, which is 50/80 = 5/8.

The Staff at a Small Company Includes: 4 Secretaries, 20 25\frac { 2 } { 5 }52​

The Staff at a Small Company Includes: 4 Secretaries, 20 $\frac { 2 } { 5 }$