Question

a bag contains 8 red marbles, 3 blue marbles, and 1 green marble. find p(not blue).
a. 9
c. \\( \frac { 1 } { 4 } \\)
b. \\( \frac { 4 } { 3 } \\)
d. \\( \frac { 3 } { 4 } \\)
please select the best answer from the choices provided
a
b
c
d

Explanation:

Step1: Calculate total number of marbles

Total marbles = \(8 + 3+1=12\)

Step2: Calculate number of non - blue marbles

Non - blue marbles = \(8 + 1=9\)

Step3: Use probability formula \(P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\)

\(P(\text{not blue})=\frac{9}{12}=\frac{3}{4}\)

Answer:

D. \(\frac{3}{4}\)