Question

В опросе, проведенным краевым комитетом по делам молодежи, приняло участие 550 человек в возрасте до 35 лет. 200 из них собираются начать свои бизнес, 300 имеют высшее образование, 50 человек имеют высшее образование и собираются начать свой бизнес. а) какова вероятность того, что наудачу опрошенный человек имеет высшее образование и не собирается начать свой бизнес? б) опрошенный имеет высшее образование. какова вероятность того, что он собирается начать свой бизнес?

Answer 1

А 300/550 Б 50/550

/- знак деления
число которое высчитаешь переведи в проценты например 0.2 - 20% или 0.21-21%

Answer 2

Given Information:

- The survey conducted by the regional youth committee involved 550 people under the age of 35. - Out of the 550 participants, 200 plan to start their own business. - 300 participants have a higher education degree. - 50 participants have a higher education degree and plan to start their own business.

a) Probability of a randomly selected person having a higher education degree and not planning to start their own business:

To calculate this probability, we need to find the number of people who have a higher education degree but do not plan to start their own business, and divide it by the total number of participants.

Let's denote: - A: Event that a person has a higher education degree. - B: Event that a person does not plan to start their own business.

We are looking for P(A and B), which is the probability of both events A and B occurring.

From the given information: - Number of participants with a higher education degree: 300 - Number of participants planning to start their own business: 200 - Number of participants with a higher education degree and planning to start their own business: 50

To find the number of participants with a higher education degree and not planning to start their own business, we can subtract the number of participants with a higher education degree and planning to start their own business from the total number of participants with a higher education degree:

Number of participants with a higher education degree and not planning to start their own business = 300 - 50 = 250.

Now, we can calculate the probability:

P(A and B) = Number of participants with a higher education degree and not planning to start their own business / Total number of participants

P(A and B) = 250 / 550

The probability that a randomly selected person has a higher education degree and does not plan to start their own business is 250/550 or approximately 0.4545.

b) Probability of a randomly selected person having a higher education degree and planning to start their own business:

To calculate this probability, we need to find the number of people who have a higher education degree and plan to start their own business, and divide it by the total number of participants.

Again, let's denote: - A: Event that a person has a higher education degree. - B: Event that a person plans to start their own business.

We are looking for P(A and B), which is the probability of both events A and B occurring.

From the given information: - Number of participants with a higher education degree: 300 - Number of participants planning to start their own business: 200 - Number of participants with a higher education degree and planning to start their own business: 50

To find the number of participants with a higher education degree and planning to start their own business, we can directly use the given information:

Number of participants with a higher education degree and planning to start their own business = 50.

Now, we can calculate the probability:

P(A and B) = Number of participants with a higher education degree and planning to start their own business / Total number of participants

P(A and B) = 50 / 550

The probability that a randomly selected person has a higher education degree and plans to start their own business is 50/550 or approximately 0.0909.