Question

В сборнике по биологии всего 30 билетов, в шести из них встречаются вопросы о цветах. На экзамене школьнику достается один случайно выбранный билет из этого сборника. Какова вероятность того, что в этом билете не будет вопроса о цветах ? ​

Answer 1

Ответ:

0,8=80%

Пошаговое объяснение:

30-6=24 количество билетов без вопросов о цветах

24/30=0,8 то есть 80% вероятность вытаскивания билета, где не будет вопроса о цветах

Answer 2

Probability of not getting a question about colors

To calculate the probability of not getting a question about colors on the randomly selected ticket, we need to determine the number of tickets that do not have color-related questions and divide it by the total number of tickets.

According to the information provided, there are 30 tickets in the biology collection, and 6 of them have questions about colors. Therefore, the number of tickets without color-related questions would be 30 - 6 = 24.

To calculate the probability, we divide the number of tickets without color-related questions (24) by the total number of tickets (30):

Probability = Number of tickets without color-related questions / Total number of tickets

Probability = 24 / 30

Simplifying the fraction, we get:

Probability = 4 / 5

Therefore, the probability that the selected ticket does not have a question about colors is 4/5 or 0.8.

Please note that the information provided is based on the given context and does not take into account any additional factors or specific details about the biology collection.