Mathematics, 23.07.2021 22:00 lilypup004
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).DXb) 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
Another question on Mathematics
Mathematics, 21.06.2019 18:30
Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !
Answers: 1
Mathematics, 22.06.2019 01:00
Libby built a fence that was 56 \text { feet}56 feet long over 44 days. she built the same length of fence each day. how many inches of fence did libby build each day?
Answers: 1
Mathematics, 22.06.2019 03:30
Graph the linear equation find three points on the graph -x+2y=11
Answers: 2
Mathematics, 22.06.2019 04:30
The minimum height for riding on the super screaming spinner at the theme park is 52 inches. which of the following expressions shows the height to ride?
Answers: 2
You know the right answer?
Theo sốliệu thống kê ởmột khu vui chơi cho trẻem, sốlượng trẻbịlạc bốmẹtrong ngày thứ7 là biến ngẫu...
Questions
Computers and Technology, 09.04.2021 14:00
Physics, 09.04.2021 14:00
Mathematics, 09.04.2021 14:00
Arts, 09.04.2021 14:00
Physics, 09.04.2021 14:00
Advanced Placement (AP), 09.04.2021 14:00
Mathematics, 09.04.2021 14:00
Mathematics, 09.04.2021 14:00
Physics, 09.04.2021 14:00
Mathematics, 09.04.2021 14:00
Chemistry, 09.04.2021 14:00
Chemistry, 09.04.2021 14:00
Mathematics, 09.04.2021 14:00
