# Math

posted by Alex

Somebody repeatedly roll a fair die. If it comes up 6 he instantly wins(and stop playing); if it comes up k, for any k between 1 and 5, he he waits k minutes and then roll again. what is the expected elapsed time from when he starts rolling until he wins?

## Similar Questions

1. ### Math

Your friend tosses three coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win \$X. If not, you lose \$1. How large should X be in order for this …
2. ### math

Your friend tosses three coins and you roll a single die. If the number on the die you roll is less than or equal to the number of heads that your friend tosses, you win \$X. If not, you lose \$1. How large should X be in order for this …
3. ### math

Consider a simple game in which you will roll a six-sided die and receive \$3.00 if you roll a 6. If it costs you \$0.90 for each roll, what is the expected value?
4. ### Math Problem

You are playing a die game. If you roll 1, then the house pays you \$25. If you roll 2, the house pays you \$5. If you roll 3, you win nothing. If you roll a 4 or a 5, you must pay the house \$10, and if you roll a 6, you must pay the …
5. ### Statistics

You have a fair die. The die has a 2 on two sides, a 4 on two sides and a 6 on two sides. Note: the only possible outcomes for each roll are 2, 4 or 6. (a) Draw a tree diagram that shows the possible outcomes of rolling the die twice …
6. ### Math Finite

Experiment: roll a fair die and flip a fair coin. What is the probability is that you roll a 3 and flip a head?
7. ### statistics

your teacher has invented a fair dice game to play. your teacher will roll one fair eight sided die and you will roll a fair six sided die. each player rolls once and the winner is the person with the higher number. in case of a tie …
8. ### math

You roll a die. If an odd number comes up, you lose. If you get a 6, you win \$54. If it is an even number other than 6, you get to roll again. If you get a 6 the second time, you win \$18. If not, you lose. (a) Construct a probability …
9. ### Statistics

A gambling game works as follows: you flip a fair coin and roll a fair six-sided die. You will be paid \$2 if you roll a 6 and \$1 if you get a head and an odd number of spots. Otherwise, you have to pay \$2.50. a) What is the probability …
10. ### Math

A game consists of you rolling one fair 6-sided die and observing the number that appears uppermost. If you roll a 2 or a 4, then you win \$10. If you roll a 6, then you win \$20. If you roll any other number, then you do not win any …

More Similar Questions