Answer:
[tex]\dfrac{1}{25}[/tex]
Step-by-step explanation:
There are 10 marbles in total, 2 of them are yellow.
The probability that the first marble drawn is yellow is
[tex]\dfrac{\text{Number of yellow marbles}}{\text{Total number of marbles}}=\dfrac{2}{10}=\dfrac{1}{5}[/tex]
The first marble is placed back, then
The probability that the second marble drawn is yellow is
[tex]\dfrac{\text{Number of yellow marbles}}{\text{Total number of marbles}}=\dfrac{2}{10}=\dfrac{1}{5}[/tex]
Multiply the probabilities:
[tex]\dfrac{1}{5}\times \dfrac{1}{5}=\dfrac{1}{25}[/tex]
