HP 12C#ABA hp 12c_solutions handbook_English_E.pdf - Page 162

Personal Finance, the number of issues held.

Page 162 highlights

• mean X = Σ---Σ-f--i-f-x-i-i • standard deviation Sx = Σ----f--i--x---i2Σ-----f--i---(---Σ--1--f--i-)---X----2• standard error Sx = Σfi Personal Finance Tax-Free Retirement Account (IRA) or Keogh Plan • n = the number of years to retirement. • i = the compunded annual interest. • PMT = the earnings used for investment (and taxes). • FV= future value. • tax= the percent tax expressed as a decimal. For ordinary taxable investment: • FV = i--(---1-P-----M----t--Ta----x---)-[1 + i(1 - tax)]{[1 + i(1 - tax)]n - 1} For tax-free investment: • FV = P-----M-----T-- (1 + i)[(1 + i)n - 1] i Stock Portfolio Evaluation and Analysis • n = the number of issues held. • Pi = the current market price / share of a stock. • Si = the number of shares of a stock held. • βi = the beta coefficient of an individual stock. • T = the total present value of a portfolio. 161

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161
mean
standard deviation
standard error
Personal Finance
Tax-Free Retirement Account (IRA) or Keogh Plan
n
= the number of years to retirement.
i
= the compunded annual interest.
PMT
= the earnings used for investment (and taxes).
FV
= future value.
tax
= the percent tax expressed as a decimal.
For ordinary taxable investment:
For tax-free investment:
Stock Portfolio Evaluation and Analysis
n
= the number of issues held.
P
i
= the current market price / share of a stock.
S
i
= the number of shares of a stock held.
β
i
= the beta coefficient of an individual stock.
T
= the total present value of a portfolio.
X
Σ
f
i
x
i
Σ
f
i
----------
=
S
x
Σ
f
i
x
i
2
Σ
f
i
(
)
X
2
Σ
f
i
1
-------------------------------------
=
S
x
Σ
f
i
=
FV
PMT
i1
tax
(
)
----------------------- 1
i1
tax
(
)
+
[
]
1
i1
tax
(
)
+
[
]
n
1
{
}
=
FV
PMT
i
------------ 1
i
+
(
)
1
i
+
(
)
n
1
[
]
=