Answer:
B. Cross-sectional data provides information about economic behavior at an instant in time, while time-series data provides information about how an economic variable behaves over time.
Explanation:
There are two types of data, transverse data and time series data. Cross-sectional data is data that exists at a single point in time. For example, data from an observational survey or sales from a firm. Time series data are data that require intertemporal analysis, such as a country's inflation and GDP data, which should be analyzed for evolution. In other words, time series data are analyzed in a manner dependent on the previous period. Current month's inflation depends on the previous month's inflation analysis.
Four major categories of Primary energy use are:
1. Transportation
2. Industrial Process
3. Commercial and residential use
4. Generation of electrical power
Transportation depends entirely on petroleum, whereas
nuclear power, coal, and water power are limited to the production of
electricity. Electricity is in most commercial and residential use. Industrial processes
use natural gas, oil, and electricity. Some oil, natural gas and biomass are
used for the generation of electricity.
Answer:
(a) 3.2
(b) 10 minutes
(c) 0.8
Explanation:
Mean number of customer in service:
= Arrival rate ÷ service rate
= 24 in 60 min ÷ 30 in 60 min
= 24 ÷ 30
= 0.8
a) Average number of people in line:
= (Mean number of customer in service × arrival rate) ÷ (Service rate - arrival rate)
= 0.8 × (24 ÷ 6
)
= 3.2
b) Average time spend at the ticket office is = 10 minutes
c) Proportion of time server is busy:
= Arrival rate ÷ service rate
= (24 in 60 min ÷ 30 in 60 min)
= 24 ÷ 30
= 0.8
Answer:
C) raise her deductible from $250 to $1,000
Explanation:
If Donna starts to drop all her coverages, then she will not only pay less, she wouldn't any insurance to cover her.
If she really needs to lower her insurance costs, the best way to do it is to raise her deductible. That way she will still be covered, but she will need to put more money in case of an accident. To be honest, generally car accidents cost thousands, and increasing the deductible from by $750 is not really that much compared to what an insurance policy covers.
The deductible is the amount of the insurance claim that must be paid by the insured, the rest is paid by the insurance company.
Increase in price leads to a decrease in supply.
