Decentralization of Stata cross multiplication
for your question, subtract the mean from each measurement.
The cost of mining equipment is mainly mining equipment cost, electricity cost, time cost (technology network cost is ignored)
I. mining equipment cost
with the popularity of bitcoin, more and more people join in mining, and the difficulty of mining also increases. Mining equipment is also developed from ordinary computer to professional mining machine, and mining machine cost fluctuates, If the currency price is high, the cost will be high, and if the currency price is low, the cost will be lower
and the prices of bitcoin machines with different models and parameters are also different. At present, the well-known bitcoin machines on the market are ant S9 and Shenma m3. The current price of bitcoin is 50000, and the cost is less than 10000
Electricity cost and technical management electricity cost is also a very important cost for mining. The power consumption of bitcoin mining machine is relatively large, which will inevitably proce a large amount of electricity cost when the mining machine is running 24 hours, while the cost of household electricity is relatively high, so the current trend of mining is transformed into the centralized mining of large mines, Generally, the electricity price will be lower and cheaper than that at home, and the mine has professional technicians to solve certain technical problems 
if you want to know more about the mining field, please send me a private message
if you want to know more about the mining field, you can send me a private message
x as the independent variable and y as the dependent variable
137m
Beixin Daokou bus stop
by bus: No.7, No.26, No.35, No.41, No.48, No.61, No.77, No.99, no.d01
1. The rability value of Coleoptera is only 432 points, which is easy to damage. Its repair method needs to use the phantom wing membrane. First of all, we should not touch the bed for more than three days, so that our top of the head will refresh the phantom wing