Find the Probability that an Event Will Not Occur
-A bag contains 20 marbles, of which 6 are blue and 10 are green. One marble is drawn from the bag. What is the probability that the marble drawn is not blue?
A) $\frac { 7 } { 10 }$
B) $\frac { 3 } { 10 }$
C) $\frac { 3 } { 8 }$
D) $\frac { 4 } { 5 }$

Question

Find the Probability that an Event Will Not Occur
-A bag contains 20 marbles, of which 6 are blue and 10 are green. One marble is drawn from the bag. What is the probability that the marble drawn is not blue? 
A) $\frac { 7 } { 10 }$
B) $\frac { 3 } { 10 }$
C) $\frac { 3 } { 8 }$
D) $\frac { 4 } { 5 }$

Quizplus · Accepted Answer

There are 6 blue marbles out of 20 total marbles. The probability of drawing a blue marble is therefore 6/20, which simplifies to 3/10. The probability of not drawing a blue marble is the complement of this, which is 1 - 3/10 = 7/10. Therefore, the answer is choice A, 7/10.

Find the Probability That an Event Will Not Occur -A 710\frac { 7 } { 10 }107​

Find the Probability That an Event Will Not Occur
-A $\frac { 7 } { 10 }$