Question

Игральный кубик подбрасывают один раз . Какова вероятность того , что число является четным ?

Answer 1

Всего чисел 6, 3 из них четные, это - 2, 4, 6.
3/6 наверно. 

Answer 2

Probability of Rolling an Even Number on a Single Die

The probability of rolling an even number on a single die can be calculated using the formula:

P = C_n^k * (1/2)^n

Where: - P is the probability - C_n^k is the number of combinations of n items taken k at a time - n is the total number of possible outcomes - k is the number of successful outcomes (in this case, rolling an even number) - (1/2) is the probability of rolling an even number on a single die

Using this formula, the probability of rolling an even number on a single die can be calculated.

Calculation

The probability of rolling an even number on a single die is P = C_n^k * (1/2)^n.

Given that there are 6 possible outcomes when rolling a single die (1, 2, 3, 4, 5, 6), and 3 of these outcomes are even numbers (2, 4, 6), the probability can be calculated as follows:

P = C_6^3 * (1/2)^6.

Substituting the values: P = 20 * (1/2)^6 P = 20 * 1/64 P = 20/64 P = 5/16

Therefore, the probability of rolling an even number on a single die is 5/16.