Respuesta :

wegnerkolmp2741o

Answer:

1/45

Step-by-step explanation:

There are 10 marbles

P ( yellow) = yellow marbles / total = 2/10 = 1/5

We do not replace the marble

There are 9 marbles, 1 of which is yellow

P ( yellow) = yellow marbles / total = 1/9

P ( yellow, no replacement, yellow) = 1/5 * 1/9 = 1/45
the answer is 1/45 because you multiply 2/10 by 1/9, which are the probabilities of both situations.

Otras preguntas