Probability (1 Viewer)

[roosterman]

Can anyone help me with this question?

A bag contains 1 red, 1 green, 1 blue and 1 orange ball. 2 balls are chosen sucessively at random.

What is the probability of choosing: a red in either draw.

Is it ( R , _ ) + ( _ , R )

or ( R , _ ) + ( _ , R ) + ( R , R ).

Cheers

 

[sle3pe3bumz]

Can anyone help me with this question?

A bag contains 1 red, 1 green, 1 blue and 1 orange ball. 2 balls are chosen sucessively at random.

What is the probability of choosing: a red in either draw.

Is it ( R , _ ) + ( _ , R )

or ( R , _ ) + ( _ , R ) + ( R , R ).

Cheers

hmm .. correct me if im wrong but you wouldnt be able to get RR assuming that replacement did not occur .. thats just what ii think but yeah .. =] therefore is the answer 3/12 = 1/4 ?

 

[roosterman]

yeah shit ur right!