contestada

the names of nine boys and two girls are in a hat. what is the probability of first drawing a girls name and then a boys name from the hat

Respuesta :

18/121 shoul be the answer

Answer:

The  probability of first drawing a girls name and then a boys name from the hat is:

                [tex]\dfrac{9}{55}[/tex]

Step-by-step explanation:

It is given that:

The names of nine boys and two girls are in a hat.

This means that the total number of names in the hat are: 9+2=11.

Also, the probability of first drawing a girls name and then a boys name from the hat is given by:

Probability of drawing a girl name×Probability of drawing a boy name.

Also, the drawing of names is done without replacement.

Hence, we get probability as:

[tex]=\dfrac{2}{11}\times \dfrac{9}{10}\\\\=\dfrac{9}{55}[/tex]

The probability is:  [tex]\dfrac{9}{55}[/tex]