Question

Теория вероятности 3 грани тетраэдра раскрашены соответственно в красный, желтый и синий цвета, а на четвертую грань нанесены все эти 3 цвета. Какова вероятность того, что при подбрасывании тетраэдр упадет на стол гранью, содержащей синий цвет?

Answer 1

Ответ:

50%

Объяснение:

у нас есть 4 грани, из них синий содержат 2, поэтому вероятность того что выпадет синий 2/4, сокращаем дробь = 1/2 = 0,5 = 50%

Answer 2

Probability of landing on a face containing the color blue

To find the probability of the tetrahedron landing on a face that contains the color blue, we need to consider the number of faces that contain the color blue and the total number of faces on the tetrahedron.

Given that the tetrahedron has three faces colored red, yellow, and blue respectively, and the fourth face contains all three colors, we can determine the probability as follows:

1. Determine the number of faces that contain the color blue: - Since one face is entirely blue, there is only one face that contains the color blue.

2. Determine the total number of faces on the tetrahedron: - A tetrahedron has four faces in total.

3. Calculate the probability: - The probability of landing on a face containing the color blue is equal to the number of faces containing blue divided by the total number of faces on the tetrahedron.

- Probability = Number of faces containing blue / Total number of faces

- In this case, the probability is 1/4 or 0.25.

Therefore, the probability of the tetrahedron landing on a face that contains the color blue is 0.25 or 25%.