Answer:
The query may still be specified in SQL by using a nested query as follows (not all
implementations may support this type of query):
SELECT DNAME, COUNT (*)
FROM DEPARTMENT, EMPLOYEE
WHERE DNUMBER=DNO AND SEX='M' AND DNO IN ( SELECT DNO
FROM EMPLOYEE
GROUP BY DNO
HAVING AVG (SALARY) > 30000 )
GROUP BY DNAME;
Explanation:
In Europe, here are 22 paid vacation days and 13 paid when on holidays. Summing up, that could be a total of 4 weeks of vacation. While on the other hand, the United States as only 16 vacation days, both paid and unpaid, and that could be a total of around 2 weeks of vacation only.
Answer:
Inelastic: Demand for business goods tends to be me more inelastic than demand for consumer goods.
Explanation:
I already did this before. ur welcome
Answer:
Expected value of X = -11.09
Explanation:
Expected profit:
= Probability of winning × Amount she wins
= 0.03 × $180
= 5.4
Expected loss:
= Probability of loosing × Amount she paid
= 0.97 × $17
= 16.49
Let X be amount of money Mary wins or loses.
E(X) = Expected profit - Expected loss
= 5.4 - 16.49
= -11.09
Expected value of X = -11.09
That is expected value of loss of $11.09
Answer: Project X
Explanation:
The Payback period is the amount of time it would take for the cash inflows accruing from an investment to payoff the cost of the investment.
Project X has a constant cashflow of $24,000 for 3 years and a cost of $68,000 for the Payback period is;
= 68,000/24,000
= 2.83 years
Project Y has an uneven cash flow with a cost of $60,000. Payback is calculated as;
= Year before payback + Amount left to be paid/cashflow in year of payback
Year before payback = 4,000 + 26,000 + 26,000
= $56,000
This means that the third year is the year before payback.
60,000 - 56,000 = $4,000
Payback period = 3 + 4,000/20,000
= 3.2 years
Based on a Payback period of 3 years, only Project X should be chosen as it pays back in less than 3 years.
