Virtual currency with rating a

2. Unreliable, suspected pyramid scheme. There are no relevant news reports from mainstream mass media.

3.

Weiss ratings, an asset rating agency, has released the world's first rating report on 74 virtual currencies, according to finance magnates. Among them, Ethernet is the highest rated and bitcoin is in the mid stream

The rating criteria of

Weiss ratings include risk, reward, technology and social acceptance, which are used to compare computer models and get the final results. Weiss ratings also said in a statement on Wednesday that its website had been attacked by hackers from South Korea in an attempt to block the release of the rating report

According to Martin D. Weiss, founder of Weiss ratings, the price trend of many virtual currencies is relatively low, and there is a risk that they will come to nothing. At present, the virtual money market is still relatively complex. The market value of global virtual money is more than half a trillion US dollars, but it is not regulated. On the technical level, blockchain technology also makes it difficult for regulators to legislate in the traditional way of assets

4. Hello, most of these platforms are not compliance channels, or even illegal,
but there is no problem, so it can not be determined
few investors and poor liquidity; Lack of supervision and serious manipulation.

5. The minimum preparation is 15000, and the graphics card needs at least 6 to be cost-effective

6. The Asian Currency rating Union, a newly established currency rating agency, is not highly recognized in the currency market. As long as they are loyal to the cause of coin appraisal and rating and work hard, they will occupy a place in the coin rating market. At present, the currency rating market is mixed, and only those who are loyal to this cause can go further.

7. It's a company that doesn't register in the mainland, but only swindles mainland customers and is not subject to the law of flash land. Basically, all the money in the box is counterfeit, and the price is not low. Don't be fooled.

8. 1. Take bus No.35 (7 stops) from Jinan north gate station to the municipal administration service center station. Cross the road and go left for about 200 meters to Zhuhai Sports Center Gymnasium
2. Take a taxi for 2.7 km, the cost is about 10 yuan. After 00:00 p.m., the cost is about 13 yuan. Note: the information is for reference only and can not be used as the basis for payment. The cost does not include toll and Bridge toll. Traffic jam and other factors may significantly increase the cost
3. Walk about 380 meters from Jinan north gate station to Shibang home world station, and take bus No.18 (4 stops) to Jinhua Garden Station. Walk about 310 meters to Zhuhai Sports Center Gymnasium

9.

1. HPR = (ending price - beginning price + cash dividend) / beginning price

example: the return rate of a stock in the past three years is 3%, 5% and 4%, while that of B stock in the next year is 10%, 5% and 8%. Calculate the expected return rate of a and B in the next year

solution:

the expected return rate of a stock = (3% + 5% + 4%) / 3 & 8194; = 4% 

The expected return of

B stock 10% × 30%＋5% × 40%＋8% × 30% = 7.4%

2, variance calculation formula

extended data:

1, expected return, also known as holding period return (HPR), refers to the return that investors hold a financial proct or portfolio and expect to obtain in the next period. The expected rate of return is the rate of return that investors expect to get in the investment period. The rate of return is the discount rate of converting future cash flow into present value. In other words, the expected rate of return is the discount rate that investors discount the expected future cash flow into the amount that they can get now

Variance is a measure of the degree of dispersion when probability theory and statistical variance measure random variables or a group of data. In probability theory, variance is used to measure the deviation between random variables and their mathematical expectation (that is, mean value). The variance in Statistics (sample variance) is the average of the square of the difference between each sample value and the average of all sample values

Covariance is used to measure the total error of two variables in probability theory and statistics. Variance is a special case of covariance, that is, when two variables are the same. Covariance represents the total error of two variables, which is different from that of only one variable

Correlation coefficient is the first statistical index designed by the statistician Karl Pearson. It is a quantity to study the degree of linear correlation between variables, which is generally expressed by the letter R. Due to the different research objects, there are many definitions of correlation coefficient, and Pearson correlation coefficient is commonly used