What is the expected number of rolls until you get a seven?
Table of Contents
- 1 What is the expected number of rolls until you get a seven?
- 2 What is the expected number of die rolls required to get three same consecutive outcomes for example a 111 222 etc if we use a 6 sided fair die?
- 3 What is the expected number of times he rolls a 5 followed by a 6?
- 4 What is the expected number of rolls of a 6 sided die until you roll a 6?
What is the expected number of rolls until you get a seven?
a) There are 36 possible outcomes and 6 of them sum up 7, so the probability of getting 7 on the first throw is 636=16. The expected number of rolls to get seven is then E(X)=116=6, but it was not on the answer choices.
What is the expected number of rolls to get a 6?
It’s just two sequential sets of rolls to get a single six. It’s expected that we’ll take, on average, six rolls to get the first six, then another six from that point to get the second six. The expected numer of rolls to get to two sixes is 12.
What is the expected number of die rolls required to get three same consecutive outcomes for example a 111 222 etc if we use a 6 sided fair die?
What is the expected number of die rolls required to get 3 same consecutive outcomes (for example: a 111, 222, etc) if we use a 6-sided fair die? I was able to solve the case for a particular number like 3 consecutive sixes. The answer comes out to be 258.
What is the expected number of times you’ll have to roll a fair 6 sided dice until you get two 6s in a row?
Therefore, the answer is 43⋅6=258.
What is the expected number of times he rolls a 5 followed by a 6?
But the problem I solved did not have the answer as 42, the answer for the expected value to roll a 5 followed immediately by a 6 was 36.
What is the expected value of rolling a dice?
3.5
When you roll a fair die you have an equal chance of getting each of the six numbers 1 to 6. The expected value of your die roll, however, is 3.5.
What is the expected number of rolls of a 6 sided die until you roll a 6?
If you then take the expectation of that probability ( in other words how many times you expect to roll the die before you get a 6) is 1/p where p is the probability of rolling a 6. The probability of rolling a 6 will always be 1/6 since the experiment is independent. So the expected number of rolls will be 1/1/6=6.
What is expected no of throw to get consecutive 6 different numbers on a dice D?
6/6 + 6/5 + 6/4 + 6/3 + 6/2 + 6/1 = 14.7 rolls.