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If you roll a die 300 times about how many times would you expect to get a 5?
1/6 of 300 = 50 times.
What is the probability that you roll a number less than five?
The answer depends on how many times a die is rolled and whether it is a fair die.For a single roll of a fair normal die, the answer is 2/3.The answer depends on how many times a die is rolled and whether it is a fair die.For a single roll of a fair normal die, the answer is 2/3.The answer depends on how many times a die is rolled and whether it is a fair die.For a single roll of a fair normal die, the answer is 2/3.The answer depends on how many times a die is rolled and whether it is a fair die.For a single roll of a fair normal die, the answer is 2/3.
How many times would you have to roll one die to roll a six five times?
If you were really unlucky, infinitely many times! The probability of that happening is very tiny but it is not zero.
What is the expected number if you roll a die three times?
The expected value if you roll a die three times is 3.5.
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
