Question

question 8 a basket contains 25 marbles. there are 3 red marbles, 7 green marbles, and the rest of the marbles are blue. what is the probability that a randomly selected marble is blue? a $\frac{3}{5}$ b $\frac{2}{5}$ c $\frac{3}{7}$

Explanation:

Step1: Find number of blue marbles

$25-(3 + 7)=15$

Step2: Calculate probability of blue marble

The probability formula is $P=\frac{\text{number of favorable outcomes}}{\text{total number of outcomes}}$. Here, the number of favorable outcomes (blue marbles) is 15 and the total number of outcomes (total marbles) is 25. So $P=\frac{15}{25}=\frac{3}{5}$

Answer:

A. $\frac{3}{5}$