# probability and statistics

Roll a fair six-sided die until you roll a number that is less than one of your previous rolls. To three decimal places, what is the expected value of the number of rolls made?

1. 👍 0
2. 👎 1
3. 👁 545

## Similar Questions

1. ### MATH

If you roll a 6 sided dice 6 times, what is the best prediction possible for the number of times you will roll a two? A) 6 B) 1 C) 2 D) 0

asked by Kelly on April 20, 2016
2. ### Geometry

You roll a six-sided die. Event A: Roll an odd number. Event B: Roll a number less than 5. Find P (A or B) . Express you answer as a fraction in simplest form. Plz help!!

asked by david on November 19, 2019
3. ### Probability

Consider an experiment in which a fair four-sided die (with faces labeled 0 , 1 , 2 , 3 ) is rolled once to determine how many times a six-sided die (with faces labeled 1 ,.., 6 ) is rolled. The die rolls are independent. Let X be

asked by Kina on June 14, 2019
4. ### statistic

Roll two 6-sided dice and examine their sum. a) How long will it take to roll "snake-eyes" (a pair of ones)? b) What is the probability of rolling a sum of 7 on the first roll? c) What is the probability of rolling a sum of 7 on

asked by Bill on April 1, 2014
5. ### math

An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr=0.2 , Pr=0.15 , Pr=0.25 , Pr=0.15 , Pr=0.05 , and Pr=0.2 . On the first roll, you record if the number is Small

asked by Nahla on March 27, 2009
1. ### statistics

The below table shows the probabilities generated by rolling one die 50 times and noting the up face. What is the probability of getting an odd up face? roll 1 Probability 0.22 roll2 probability 0.10 roll 3 probability 0.18 roll 4

asked by sc on May 3, 2012
2. ### math

If you flipped a coin once and rolled a 6-sided die, what is the probability you will flip a head and roll a 6?

asked by *Confusion* on May 21, 2019
3. ### Math

Maria has an 8-sided die that is numbered from 1 to 8. She rolls the die 96 times. About how many times can she expect to roll an 8?

asked by Abby on June 12, 2015
4. ### math

If you roll a 6-sided die 96 times, what is the best prediction possible for the number of times you will roll a one?

asked by Anonymous on March 23, 2018
5. ### math

If you roll a 6-sided die 96 times, what is the best prediction possible for the number of times you will roll an even number?

asked by unknown on April 18, 2020
6. ### math

If you roll a 6-sided die 96 times, what is the best prediction possible for the number of times you will roll a one?

asked by Anonymous on March 23, 2018