Một mẫu số liệu có bảng tần số ghép nhóm sau:\(\left[ \(\left[ \(\left[ \(\left[ \(\left[ \(\left[

\(\begin{array}{|l|c|c|c|c|c|c|} \hline \text { Nhóm } & {[0 ; 15)} & {[15 ; 30)} & {[30 ; 45)} & {[45 ; 60)} & {[60 ; 75)} & {[75 ; 90)} \\ \hline \text { Tần số } & 8 & 16 & 29 & 25 & 15 & 7 \\ \hline \end{array}\)

Hãy ước lượng giá trị trung bình của mẫu số liệu trên.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

Working on Your Workout

(I) Although appreciating a balanced diet and regular exercise, most people do not know how to exercise properly. Consequently, they usually rush through their workouts, or they make the same common workout mistakes. (II) Exercising the right way is important for people who are worried about their health and their appearance. (III) However, if someone is not working out properly, they will not see the results they want. Therefore, training experts have devised tips to teach people how to exercise correctly in order to achieve the greatest health benefits. (VI)

One of the most common workout mistakes is doing the same routine over and over again. This does not challenge your muscles, and it can actually prevent muscles from growing and repairing themselves. Instead of always sticking to the same old workout, it is important to change your routine every six to eight weeks. It is also important to add a variety of workouts to your routine, such as swimming, yoga, or biking, to make sure your whole body stays fit. This will help make your workouts more interesting, and benefit your health and muscle development as well.

Another mistake people tend to make is to work out too hard, too often. Your body needs to rest between workouts; otherwise, no progress will be made. It is best to keep the number of hard workout routines to no more than two per week. Then, for those who don’t want to get off schedule by skipping a day, shorter workouts of about twenty minutes can be used on other days. For more variety in workouts, you could also plan an easier routine for forty to sixty minutes between days of shorter, more intense workouts. Experts recommend, however, taking at least one day off completely each week, especially after several hard workout days in a row.

In reality, no one is perfect. However, if you want to make a difference in your overall health, there are some things you can do. Stretch before and after every workout. Do not rush your routine, and do not work out too little or too much. Remember not to make these common workout mistakes, and always have fun while exercising!

Which of the following best paraphrases the underlined sentence: "Instead of always sticking to the same old workout, it is important to change your routine every six to eight weeks"?

Gia đình anh A sinh sống ở vùng biên giới, anh rất tích cực hỗ trợ, kết hợp cùng các cán bộ, chiến sĩ bộ đội biên phòng tuần tra biên giới nhằm bảo vệ chủ quyền lãnh thổ, an ninh quốc gia. Theo em, anh A đã thực hiện tốt quyền dân chủ nào của công dân?

Số lượng của một loài vi khuẩn trong phòng thí nghiệm được tính theo công thức \(S\left( t \right)=A\cdot {{(1+r)}^{t}}\), trong đó \(A\) là số lượng vi khuẩn ban đầu, \(S\left( t \right)\) là số lượng vi khuẩn có sau \(t\) (phút), \(r\) là tỉ lệ tăng trưởng \((r>0),t\) (tính theo phút) là thời gian tăng trưởng. Biết rằng số lượng vi khuẩn ban đầu có 500 con và sau 6 giờ có 2000 con.

Tỉ lệ tăng trưởng của loài vi khuẩn này gần nhất với kết quả nào dưới đây?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions

a. Protecting animals is an important responsibility that we all share as they play a vital role in maintaining the balance of our ecosystems.

b. For instance, poaching, illegal wildlife trade, and deforestation have devastating effects on animal populations, driving some to the brink of extinction.

c. To combat these issues, we can take meaningful steps such as reducing waste, preserving natural habitats, and actively supporting wildlife conservation programs

d. Unfortunately, many species are facing the threat of extinction due to habitat loss and various harmful human activities.

e. By working together, we can create a safer and healthier environment for animals, ensuring their survival and the biodiversity of our planet for future generations.

Cho \(a > 0\) và \(a \neq 1\). Giá trị \(log_a \sqrt{a}\) bằng bao nhiêu?

Tại sao trước khi ủ để hạt nảy mầm, người ta thường ngâm hạt trong nước một thời gian?

Este X chứa vòng benzen có công thức phân từ là C₈H₈O₂. Số công thức cấu tạo của X là 

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30.

AVICII’S LIFE AFTER REHAB

Once he completed his month in rehab, Avicii seemed to have a new outlook on life. He was meditating regularly, reading about the collective unconscious, and got a puppy. After not performing for a long period of time, he returned to the stage in 2016 at Miami’s Ultra Music Festival. It was announced a few days after this gig that he would not be performing live anymore. Avicii chose to not perform so that he could focus on bettering his mental health.

Despite appearing to have new-found stability, Avicii still struggled to deal with his mental health issues. While continuing to suppress the anxiety and depression that he frequently felt, Avicii also started to become disinterested in his music career. During this time, he was smoking and drinking on occasion which may have resulted in a resurgence of his disassociation feelings.

He told Tereza Kacerova, his girlfriend at the time, “What if everyone around me is just a projection in my mind? Sometimes I just think these things. About how nothing really matters.”

Avicii started to focus heavily on meditation which he found to be helpful in clearing the “nonsense” from his mind. He believed that a deep form of meditation taught by Maharishi Mahesh Yogi was a way to exercise his brain which he had decided would lead to his happiness. Despite this form of meditation typically being done in 20 minutes increments, Avicii would sometimes spend full days meditating in an attempt to reach enlightenment faster.

The word suppress in paragraph 2 is closest in meaning to

Thủ phủ cam Quỳ Hợp và một số vùng cam lớn ở các huyện Nghĩa Đàn, Con Cuông, Tân Kỳ… những năm trước là vựa cam lớn của tỉnh Nghệ An nhưng nay đã bị chặt bỏ, diện tích còn lại không nhiều do sâu bệnh phá hoại và chất lượng giống kém. Nhưng, vẫn còn nhiều vườn cam ở các huyện Yên Thành, Thanh Chương, Anh Sơn, Nghi Lộc… vẫn trĩu quả, đang vào mùa thu hoạch.

Vùng cam xã Đoài xã Nghi Diên giá bán bao giờ cũng cao gấp nhiều lần so với cam ở nơi khác. Mặc cho giá cao, nhiều người vẫn muốn mua mà không có đủ hàng bán. Giá bình quân một quả cam ở đây không phải chỉ có năm nay mà năm nào cũng không dưới 70.000 đồng, có lúc lên đến 100.000 đồng/quả, nhất là những quả cam chín muộn vào dịp Tết Nguyên đán.

Sở dĩ cam ở đây nổi tiếng thơm ngon, bán được giá cao bởi dưới lớp đất sâu ở vùng này có rất nhiều vỏ nghêu, sò, ốc, hến, có lẽ xưa kia đây là bãi biển nên cam ở đây rất ngọt, thơm ngon và một nguyên nhân nữa là cam ở đây được trồng từ cành chiết nên giữ nguyên được chất lượng vốn có của giống cam xã Đoài ngày xưa để lại.

Theo số liệu của Chi cục Trồng trọt và BVTV Nghệ An, tính đến đầu năm 2021, diện tích cam toàn tỉnh có 4.735 ha nhưng sau đó chỉ còn lại gần 1.800 ha. Số diện tích còn lại tập trung ở các huyện Thanh Chương, Yên Thành, Anh Sơn… Đa phần diện tích cam còn lại được chăm sóc tốt nên vườn nào cũng sai quả, quả to, có thể cho năng suất bình quân trên dưới 25 tấn/ha.

(Nguồn: nongnghiep.vn)

Giả sử năm 2020, 1 quả cam Xã Đoài được bán với giá 70.000 đồng vậy bà con thu về được bao nhiêu tiền từ 50 quả cam?

Cho các cấu hình electron của các nguyên tố sau

(1) 1s²2s²2p⁶3s²

(2) 1s²2s²2p⁶3s²3p⁵

(3) 1s²2s²2p⁶3s²3p⁶3d⁵4s²

(4) 1s²2s²2p⁶

Nguyên tố kim loại là

Read the following passage about a football player and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

Cristiano Ronaldo, one of the greatest football players of all time, (18) __________.

Born on February 5, 1985, in Funchal, Madeira, Portugal, he showed exceptional talent from a young age. His journey began at Sporting Lisbon, where he honed his skills before moving to Manchester United in 2003. There, he developed into a formidable player, winning multiple Premier League titles and the coveted UEFA Champions League.

During his time at Manchester United, Ronaldo developed into a world-class player, winning three Premier League titles and the UEFA Champions League. He became well known for his incredible speed and powerful shots  (19) __________ . In 2009, he transferred to Real Madrid, where he broke numerous records, including becoming the club’s all-time leading scorer. (20) __________.

Possessing remarkable athleticism and a keen sense of strategy, (21) __________. His training regimen, which includes intense workouts and a strict diet, ensures that he remains at peak performance. This dedication has allowed him to adapt his playing style over the years, maintaining his relevance in an ever-evolving sport. Additionally, Ronaldo’s ability to lead his teammates has earned him respect both on and off the field.

Beyond his football career, Ronaldo is a philanthropist who uses his platform to give back to the community. (22) __________. His influence extends far beyond the pitch, making him a global icon and a role model for aspiring athletes. Ultimately, Cristiano Ronaldo’s legacy is defined not only by his records but also by his commitment to making a positive impact in the world.

Chọn ý đúng: Môi trường xã hội bao gồm?

Xác định thành phần nguyên tử (số proton, neutron, electron), số hiệu nguyên tử, điện tích hạt nhân của các nguyên tử và điền vào bảng sau:

A human-like robot that can drive a car could one day be used as a chauffeur, though its creator admits that this may take at least 50 years.

Most driverless cars work very differently to a human driver, using artificial intelligence and custom mechanical systems to directly move the steering wheel and pedals. This approach is much more efficient and simpler than using a robot to drive, but it is also specially made for each particular car.

Kento Kawaharazuka at the University of Tokyo and his colleagues have developed a human-like robot, called Musashi, that can drive a car in the same way as a human. It has a human-like “skeleton” and “musculature”, as well as cameras in each of its eyes and force sensors in its hands and feet. Artificial intelligence systems work out what actions are needed to drive the car and react to events that often happen on roads such as traffic lights changing colour or a person stepping in front of the car. The robot can only perform a limited range of driving tasks at present, such as going forward in a straight line, taking a right- hand turn, and moving at speeds of around five kilometres per hour on non-public roads. “The speed of the pedal or the velocity of the car is not high. Also, the handling of the car is not fast compared to human beings,” says Kawaharazuka.

It seems that a robot at the controls of a car, operating in real traffic conditions and in total safety, is not something we are likely to see soon. As mentioned earlier, it could be decades before a robot could really step into the driver’s seat.

What is mentioned about driverless cars in paragraph 2?

Cơ quan nào có thẩm quyền thông qua dự toán ngân sách và giám sát ngân sách nhà nước?

Cho bất phương trình \(\log _{2}\left(5^{x}-1\right) \leq m\).

Khi \(m=2\), tập nghiệm của bất phương trình là

Cho \(29,55(\mathrm{g})\) muối barium carbonate vào bình chứa dung dịch \(\mathrm{HNO}_{3}\) loãng dư, các phản ứng xảy ra hoàn toàn, thể tích khí thu được (ở đkc) sau phản ứng là

Thị trường lúa gạo, thị trường dầu mỏ, thị trường tiền tệ, thị trường chứng khoán, thị trường bất động sản,..thuộc loại thị trường nào?