The probability that demand is greater than 1800 gallons over a 2 hour period is : 0.5
<u>Given data :</u>
Mean value of gasoline per hour = 875 gallons
Standard deviation = 55 gallons
<h3>Determine the probability of demand being greater than 1800 gallons over 2 hours </h3>
Demand for gas in 1 hour = X₁
Demand for gas in 2 hours = X₁ + X₂
Therefore ; ( X₁ + X₂) ~ N ( u₁+u₂, sd₁² + sd₂² )
In order to calculate probabilities for normals apply the equation below
Z = ( X- u ) / sd
where : u = 1800, sd = √ ( 55² + 55² ) = 77.78
using the z-table
P( Y > 1800) = P( Z > ( 1800 - 1800 ) / 77.78)
= P( Z>0 ) = 0.5
Hence we can conclude that The probability that demand is greater than 1800 gallons over a 2 hour period is : 0.5.
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Answer:
A
Explanation:
An investment of $40,000 to generate 2,000 conversions and a CPA of $20 will help Molly with her marketing goal to generate more sales than other investment plan
Answer:
d. not all resources are equally suited to producing every good.
Explanation:
The rule of increasing cost of opportunity is the principle that, when you keep increasing the development of one item, the cost of opportunity of creating the next unit rises. It occurs just as you redistribute resources to create one product which was ideally suited to create the initial product.
Answer:
C. The speed with which general prices are rising
Explanation:
Inflation measures the rate at which the general prices of goods and services are increasing in an economy. During inflation, the purchasing power of a country's currency is eroded. Inflation means a selected basket of goods will cost more this period than it did in the previous season.
The consumer price index or CPI is the most acceptable index used in determining the rate of inflation. Inflation may result from high economic growth where firms and individuals have increased incomes resulting in too much money in circulation. A moderate level of inflation is required to promote spending and sustain favorable economic growth.
