Question

a bag with 10 marbles has 10 yellow marbles. a marble is chosen from the bag at random. what is the probability that it is yellow?
write your answer as a fraction in simplest form.

Explanation:

Step1: Recall the probability formula

The probability formula is \(P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\).

Step2: Identify the number of favorable and total outcomes

Here, the number of yellow marbles (favorable outcomes) is \(n = 10\), and the total number of marbles (total outcomes) is \(N=10\).

Step3: Calculate the probability

Substitute into the formula: \(P=\frac{10}{10}\).
Simplify the fraction \(\frac{10\div10}{10\div10}=1\).

Answer:

\(1\)