Question

a teacher keeps all her markers in a single plastic container. the market all appear alike, with the exception of the label.

Answer 1

Step-by-step explanation:

The total number of whiteboard markers is

`18`

The number of the overhead markers is

`=4`

The number of watercolor markers is

`=3`

The total number of markers are

`18+4+3=25`

The probability of 2 watercolors will be gotten below as

`=(3)/(25)*(3)/(25)=(9)/(625)`

The probability of picking 1 white board marker and 1 overhead marker is gotten below as

`(18)/(25)*(4)/(25)=(72)/(625)`

The probability of picking 1 white board marker and 1 watercolor marker is gotten below as

`(18)/(25)*(3)/(25)=(54)/(625)`

The probability of picking two white board markers will be

`(18)/(25)*(18)/(25)=(324)/(625)`

Hence,

The final answer is