Предмет: Математика, автор: Апрыфгыртыр

Бросают три рублёвые монеты. Какова вероятность того,что 2 монеты упадут орлом, а одна решкой.

Ответы

Автор ответа: beijing9
4
Так как решкой может упасть любая из трёх монет, то искомая вероятность равна
P=\frac{1}{3}*(\frac{1}{2})^2=\frac{3}{8}
Автор ответа: VictorMin
5
При бросании трех монет возможно 2³ = 2*2*2=8 вариантов.
Решкой может упасть любая из трёх монет.
Вероятность, что одна монета упадет "решкой", а две монеты "орлом" равна
3/8

Похожие вопросы
Предмет: Русский язык, автор: SuperCheter
Предмет: Английский язык, автор: Лавровыйлист
Срочно помогите!
Part A Fill in the correct tense of verb
Part B Look at the pictures and fill in an appropriate answers




1. Benny often ________ (go) to school late.
2. My mom ________ (iron) the clothes every day.
3. The girls _______________(watch) the film now.
4. She always _________ (leave) the umbrella in the kitchen.
5. Dad ___________(be read) the living room.
6. ______(do) the kids ________(do) their homework after class.
7. Gabriel and lolene_______(be get) married tomorrow.
8. Keith__________(live) in Australia.
9. Roger_______(hate) grapes but he_________(like) papayas.
10. Eva seldon_____(go) out without her daughter.
11. Ivan always_______(eat) at that restaurant.
12. Leon________(be tidy) uup the mess now.
13. Roy's wife_____(be prepare) dinner in the kitchen.
14. Joe and Mendy_________(has) milk and foast for breakfast.
15.______(does) your mom speak English with you?
16. Harold_____(catch) a rat in the bedroom.
17. Paut usually_______(refuse) to finish his homework.
18. I_________(play) the piano but I don't play the guitar.
19. Granma usually______(water) the plants in the morning.
20. Unde Steve________(walk) to his office every day.



Peter and Rachel are_____ blocks in their room.
Gavin______ to read the newspaper on the bed.
Willy always_____ his teech in the morning but he is______ now.
Tina usually_____ to school on foot bit today she is taking a bus .
Regina is______ how to use the computer.
Elane_______ her brother to tie her hairv every day.
Jane us_____ her hands.
Amber is______ in the phone


Заранее спасибо ❤
Предмет: Алгебра, автор: Аноним
Предмет: Алгебра, автор: yanakrasnodar1