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The expected value if you roll a die three times is 3.5.

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Q: What is the expected number if you roll a die three times?
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Related questions

If i roll a die 90 times how many times can i expect to roll a 6?

pr(six) = 1/6 → expected 6s in 90 rolls = 1/6 × 90 = 15


How may time can you expected to roll a 4out of 18 rolls on a six sided sides?

Three times.


How many times would you expect to roll an even number on a 6-sided number cube labeled 1-6 if you rolled 40 times?

The expected value is 20 times.


If you roll a dice 160 times about how many times would you expect to get 7?

The expected number of times is the probability x number of throws. Since you have a prob of 1/6 for a seven, then (1/6) * 160 = 26.67 times you would have success. We generally would round up the expected number of successes to the whole number 27.


What is the probability of rolling a number greater than three if you roll a die two times?

fifty percent


If you roll a die 30 times how many times should you expect to roll a number less than 3?

The expected number of rolls under 3 is the number of rolls times the probability of rolling less than 3. So: E(rolls less than 3 out of 30) = 30 * 1/3 = 30/3 = 10


If you roll a dice 100 times how many times would you roll a three?

100/6 = 16.6 times


Why Based on the experimental probability predict the number of times that you will roll a 5 if you roll the number cube 300 times.?

The expectation is 50 times.


If a dice is rolled 90 times what is the sum of the first and second roll expected to be on average?

If a DIE (not dice) is rolled 90 times, the expected value of the sum of the first and second rolls is 7 if you assume that the die is fair. It does not matter how many times you roll the die, as long as it is at least 2.


If you roll a fair number cube 30 times how many times would you expect to roll a odd number?

Type your answer here... 15


If you roll a fair number cube1 time about how many times can you expect to roll a 3 and then a 5?

Never. If you roll it 1 time, there can be no "then".


What percent of the time will you get a 1 if you roll a die 60 times?

16.66... % of the time - if the die is fair. And the percentage is not affected by the number of times you roll it.