Mathematics, 22.07.2021 14:00 jennysantoyo13

Theo sốliệu thống kê ởmột khu vui chơi cho trẻem, sốlượng trẻbịlạc bốmẹtrong ngày thứ7 là biến ngẫu nhiên X có bảng phân phối xác suất như sau:X01234P0.30.30.20.10.1a) Tìm kỳvọng ()EXvà phương sai (2).DXb) Giảsửkhi trẻbịlạc sẽcó 3 thông báo liên tiếp được phát ra từhệthống do bốmẹyêu cầu. Gọi Y là sốthông báo phát ra vềtrẻbịlạc trong ngày thứ7. Tính xác suất (8).

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 19:40

Which system of linear inequalities is represented by the graph?

Answers: 1

Answer

Mathematics, 21.06.2019 22:00

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Answers: 1

Answer

Mathematics, 22.06.2019 03:10

Which statement is true about the discontinuities of the function f(x) = x-5/ 3x^2-17x-28

Answers: 2

Answer

Mathematics, 22.06.2019 03:30

Find the sixth term of the following geometric sequence.

Answers: 1

Answer

You know the right answer?

Theo sốliệu thống kê ởmột khu vui chơi cho trẻem, sốlượng trẻbịlạc bốmẹtrong ngày thứ7 là biến ngẫu...

Questions

Physics, 25.02.2021 02:20

electric force and electric charge have an relationship, while electric force and distance have an relationship...

Biology, 25.02.2021 02:20

Describe evidence of early microbial life PLEAAASE I DONT KNOW WHAT TO WRITE...

Biology, 25.02.2021 02:20

What are 3 different types of mutation ...

History, 25.02.2021 02:20

NETCESITO CONSEJOS XFA QUIERO OLVIDAR A ALGUIEN¿???...

History, 25.02.2021 02:20

What main problem did civil service reform address...

Geography, 25.02.2021 02:20

Definition of escarpment...

Mathematics, 25.02.2021 02:20

Realiza tres ejemplos de probabilidad subjetiva...

Mathematics, 25.02.2021 02:20

Which could not be a set of intervals for a frequency table or a histogram? A 0–4, 5–9, 10–14, 15–19, 20–24B 1–5, 6–10, 11–15, 16–20, 21–...

Biology, 25.02.2021 02:20

Bloquei Explicas el comportamiento de los fluidos Actividad de aprendizaje 1 Instrucciones (1): A continuación se enlistan característica...

Mathematics, 25.02.2021 02:20

Ron is making a triangular frame for a garden using three lengths of wood. He has three pieces of wood that measure 3 feet, 8 feet, and 4 feet in leng...

Social Studies, 25.02.2021 02:20

1. Mësues për ata njerëz, detyra kryesore, funksionale apo profesionale e të cilëve është t'i ndihmojë të tjerët:...

Computers and Technology, 25.02.2021 02:20

¿cuáles son los usos que se le pueden dar a una bicicleta?...

Mathematics, 25.02.2021 02:20

HELP! PASSED DUE SAME WORK SHEET! LAST FOUR! 22) 8.4 times 10 to the power of 6 24) 4.5 times 10 to the power of 4 30) 4.6 times 10 to th...

Mathematics, 25.02.2021 02:20

B 17. Alex makes į of a gallon of fruit punch using three different juices. Which shows the fractions of a gallon of each juice he...

Mathematics, 25.02.2021 02:20

Let me represent the average number of hours of sleep all the students are your school caught the previous night...

Advanced Placement (AP), 25.02.2021 02:20

Realizează expansiunea atributului scris italic în versul dat, despărțind în propoziții fraza obținută și indicând felul acestora. ,,Fără frumusețea t...

Mathematics, 25.02.2021 02:20

Help! Please! Will give brainliest! ...

Mathematics, 25.02.2021 02:20

What is the measure of angle q°? ...

Mathematics, 25.02.2021 02:20

PLEASE HELP Find a point on the line and the line’s slope passing through the point (-5, -1). Y- 3 = - 4/3 (x - 5) Point on the li...

English, 25.02.2021 02:20

Can someone please explain the question and provide an example? I am very confused "Here’s an exercise to get your brain to think in terms of classif...

More questions: Mathematics Another questions