Question

Ученик на курсах по подготовке водителей в среднем на 73 правильных ответа на экзаменнационные вопросы дает 7 неверных ответов. Найдите вероятность того, что ученик даст верный ответ. Результат округлите до сотых.

Answer 1

73+7=80 всего вопросов в среднем

73/80 вероятность= 0,91

Answer 2

Calculating the Probability of Giving a Correct Answer

To calculate the probability of the student giving a correct answer, we can use the following formula:

Probability of giving a correct answer = Number of correct answers / (Number of correct answers + Number of incorrect answers)

Given: - Number of correct answers = 73 - Number of incorrect answers = 7

Using the provided formula, we can calculate the probability:

Probability of giving a correct answer = 73 / (73 + 7) = 73 / 80 = 0.9125

Rounding the result to the nearest hundredth, the probability of the student giving a correct answer is 0.91.