probability (1 Viewer)

[Halo189]

2. In a set of cards, each has one of the letters A, B, C, D and E on it. If two cards are selected at random with replacement, find the probability that
a) Both cards are A's
b) One card is an A and the other is a D
c) Neither card is an A or D


Thx

 

[Drsoccerball]

Re: pribability

2. In a set of cards, each has one of the letters A, B, C, D and E on it. If two cards are selected at random with replacement, find the probability that
a) Both cards are A's
b) One card is an A and the other is a D
c) Neither card is an A or D

3. In a game of Yahtzee, 5 dice are rolled. Find the probability of rolling:
a) All 6's
b) All the same number

Thx

2 how many cards are there?

3a since 1/6 probability for each 6

3b since theres six possible values you times by 6 or... 1 for the probability of picking any number

 

[Halo189]

Re: pribability

2 how many cards are there?

3a since 1/6 probability for each 6

3b since theres six possible values you times by 6 or... 1 for the probability of picking any number

Thank you but the question was worded wrong like a type so that's why 3a is zero haha

 

[Halo189]

Re: pribability

*typo

 

[Drsoccerball]

Re: pribability

Thank you but the question was worded wrong like a type so that's why 3a is zero haha

Yeah it's not possible to = 0 you can't have 0 possibility if there is a chance it could happen... Maybe that question was suppose to be: Probability of rolling 6 sixes

 

[Graceuf]

If there's only the cards mentioned above it would be impossible to pick out 2 A's because there isn't 2 A cards. Or have I read this wrong?

 

[Graceuf]

Never mind. I missed the second part...