Friday
July 25, 2014

Homework Help: Statistics

Posted by Mike jenkins on Wednesday, July 18, 2012 at 6:27pm.

cant tell if i am on right track for this prababilitly hw assigment help would good!



I was recently given a hw assigment dealing with the price is right's "money game". The contestant is shown nine cards on a board. Each card has one pair of numbers. One card has the first two digits of the price of the car and the second card has the last two digits of the price of the car. The middle digit is given. The contestant chooses one card at a time. If the card contains a pair of digits from a car price it is placed in one of the two card price slots. If it does not contain two pair of digits from the car price it is placed in one of the four money slots on the left of the board. The contestant wins the car if the two car slots are filled before the four money slots. Other wise the contestant eins a small amount of money. My teacher has asked me six questions 1) what is the probabililty of winning the car selecting two cards. 2) what is the probabililty winning the car selecting three cards. 3) what is the probabililty winning the car selecting four cards. 4) what is the probability winning the car selecting five cards. 5) what is the probabililty that the contestant will win a car 6) what is the probabilily the contestant will win money. I feel that when the teacher sais the term select it means i can do the ncr method because ncr method the numbers do not have to be in order and it seems like it is a without replacement type of questions. Im getting confused on what type of formula to use because i feel you can also put this in fraction form which give
You a decimal . I wanted to think Ican also use the permutation method but im not sure until this becomes clear to me. For the first question dealing with probabililty of winning car selecting two cards i wanted to use the fraction of 8/9 and 7/8 bu and
Muiltiply them and simplify but im not sure if my idea is right. There is the given probaililty idea that im thinking of like i sellect one tile and now it becomes 8/9 then second card makes it 7/8 i do mot know if im thinking wrong but if you can walk me theough this to gove me ways to think of this problem i havent thought of it really would help thanks

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