HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Rolling a 15 on a standard number cube (a die) is
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Impossible
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Certain
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Unlikely
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Equally Likely
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Explanation:
Detailed explanation-1: -In other words, the probability P equals p to the power n, or P = pⁿ = (1/s)ⁿ . If we consider three 20-sided dice, the chance of rolling 15 on each of them is: P = (1/20)³ = 0.000125 (or P = 1.25.
Detailed explanation-2: -The sample space for rolling a number cube once is 1, 2, 3, 4, 5, and 6. There are six possible outcomes for rolling a number cube and one of the outcomes is a 5.
Detailed explanation-3: -Therefore probability the probability of getting a number less than 3=26=13.
Detailed explanation-4: -If by a “standard number cube” you mean an unbiased six-sided die with the sides numbered 1-6, the probability of rolling one of them is 2/6 or 1/3.
There is 1 question to complete.