Chapter 0, Problem 60PO

To determine

The probability of finding green or red marbles from the jar.

Answer to Problem 60PO

  $P=0.467$

Explanation of Solution

Given:

Red marbles = 3

Green marbles = 4

Black marbles = 2

Blue marbles = 6

Formula used:

Probability (P) = $\frac{\text{Possible event}\left(PE\right)}{\text{Total event}\left(TE\right)}$

Calculation:

Total number of marbles,

  $\begin{array}{l}TE=3+4+2+6\\ TE=15\end{array}$

Total red and green marbles,

  $\begin{array}{l}PE=3+4\\ PE=7\end{array}$

By the probability formula,

  $\begin{array}{l}P=\frac{PE}{TE}\\ P=\frac{7}{15}\\ P=0.467\end{array}$

Conclusion:

Hence, the probability of finding green or red marbles from the jar is 0.467.