Answer:
(a) E(X) = 3
(b) Var(X) = 12.1067
Explanation:
(a) E[X]
E[X]T = E[X]T=A + E[X]T=B + E[X]T=C
= (2.6 + 3 + 3.4)/3
= 2.6 (1/3) + 3(1/3) + 3.4(1/3)
= 2.6/3 + 1 + 3.4/3
= 3
(b) Var (X) = E[X²]−(E[X])²
Recall that if Y ∼ Pois(λ), then E[Y 2] = λ+λ2. This implies that
E[X²] = [(2.6 + 2.6²) + (3 + 3²) + (3.4 + 3.4²)]/3
= (9.36 + 12 + 14.96)/3
= 36.32/3
= 12.1067
Var(X) = E[X²]−(E[X])²
= 12 - 3²
= 12.1067 - 9
= 3.1067
It is False.
No matter which states the employee lives, the amounts withheld from each employee for social security and medicare do not vary by state. The present tax rate for social security for employers and employees is 6.2% and the present current rate of medicare is 1.45% for both the employer and employee.
Employers are typically required to withhold Social Security and Medicare taxes from an employee's paycheck and pay the employer's share of those taxes.
The Social Security Tax and the Medicare Tax have different rates, and only the Social Security tax has a salary cap. The base salary ceiling is the maximum taxable salary in the year. Determine the withholding amount for Social Security and Medicare contributions by multiplying each payment by the employee's tax rate.
To learn more about social security and medicare from given link
brainly.com/question/19277833
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Answer:
The correct answer is A. The time value of money.
Explanation:
In economic theory, the temporary value of money is intended to represent the idea that a dollar of today is worth more than a dollar of the future, even after adjusting for inflation, because a dollar can now generate interest or other returns up to moment in which the dollar of the future is received. This theory is based on the calculation of present or current value.
