Question 186165: 106) you have 3 cards: an ace,a king,a queen. A friend shuffles the cards, selects two of them at random, and discards the third. you ask your friend to show you a picture card, and she turns over the king.
A) what is the probabilty that she also has the king?
_______________________________________________________________________________
-consider a six sided die that has 1 dot on one side, 2 dots in two sides and dots on 3 dots on three sides.
-- if the side is rolled twice determine the probabilty of rolling.
108) two 3's
110) an odd number greater then 1
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! 106) you have 3 cards: an ace,a king,a queen. A friend shuffles the cards, selects two of them at random, and discards the third. you ask your friend to show you a picture card, and she turns over the king.
A) what is the probabilty that she also has the king?
Comment: There is only one king. What is this about "also has the king"?
Probability is zero; there is only one king.
_______________________________________________________________________________
-consider a six sided die that has 1 dot on one side, 2 dots in two sides and dots on 3 dots on three sides.
-- if the die is rolled twice determine the probabilty of rolling.
108) two 3's
(3/6)(3/6) = (1/2)(1/2) = 1/4
----------------------------------------
110) an odd number greater then 1
P(rolling one three in two rolls) = 12/36 = 1/3
Comment: I wrote out the sample space and counted the number
of results that have one three; there were 12.
===========================================
Cheers,
Stan H.
|
|
|