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The expected value is 7.

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Q: What is the expected value of the sum of the number that appears when a pair of fair dice is rolled?
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If a number cube is rolled 120 times predict the number of times it will land on a 4?

If it is a fair die then it is impossible to predict. The expected value is 20.


What is the expected sum ofthe numbers that appear when three fair dice are rolled?

The expected value is 10.5


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The expected value is 20 times.


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

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In IPv6 addresses the number FF often appears What is the decimal value of FF?


What is an example of a problem whose expected value is equal to 5000?

The expected value of the number of Heads in 1 toss of a fair coin is 0.5. So the expected number of Heads in 10000 tosses of a fair coin is ... 5000!


Two dice are rolled. if the sum is 2 or 12 you win 100. if the sum is anything else you receive nothing. It costs 10 to roll. What is the expected value?

The expected value is 100*1/18 - 10*17/18 = -170/18 = -85/9


Mode of numbers?

Mode is the value (number) that appears the most.


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It is its frequency.


What is the expected number if you roll a die three times?

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Pablo rolled a standard die times He got a 1 twelve times How does this result compare to the expected results?

The expected values were 2 of each value. This differs significantly from what was expected. You could show that the die is most likely not fair by using a chi squared test for goodness of fit.