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CFA Level 1 Exam Questions with Complete Solutions

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CFA Level 1 Exam Questions with Complete Solutions A standard normal probability distribution has a mean of zero, so subtracting the mean from a normal random variable before dividing by its standard deviation is necessary to produce a standard normal probability distribution. An analyst wants to construct a hypothesis test to determine whether the mean weekly return on a stock is positive. The null hypothesis for this test should be that the mean return is: A) Greater than zero B) Less than or equal to 0 C) Greater than or equal to 0 - Answer-B = Less than or equal to 0. Null hypothesis = condition if rejected would lend evidence to true alternative hypothesis. Alternative = Mean is Greater than 0. Null = Less than or = 0. X, Y, and Z are independently distributed random variables. The probability of X is 30%, the probability of Y is 40%, and the probability of Z is 20%. Which is closest to the probability that X or Y will occur? A) 70% B) 58% C) 12% - Answer-B = 58% The probability of X or Y is P(X) + P(Y) − P(XY). 0.3 + 0.4 − (0.3)(0.4) = 58% An analyst should use a t-test with n-1 degrees of freedom to test a null hypothesis that two variables have: A) equal means B) equal variances c) no linear relationship - Answer-A = Equal Means Differences in Means = T-Tests (N-1) Tests of Correlation = T-Tests (N-2) Tests for equality of variances = F-Tests

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CFA Level 1 Exam Questions with
Complete Solutions
Allen Jabber invested $400 at the beginning of the last 12 months in the shares of a
mutual fund that paid no dividends. Which Method will he correctly choose to calculate
his average price per share from the monthly share prices?

a) Arithmetic Mean
b) Harmonic Mean
c) Geometric Mean - Answer-Harmonic Mean - The harmonic mean of the 12 purchase
prices will be his average price paid per share.

Colonia has 2 political parties, the Wigs and the Wags. If the Wags are elected there is
a 32% probability of a tax increase over the next 4 years. If the Wigs are elected there is
a 60% probability of a tax increase. There is a 20% probability the that the Wags will be
elected. The sum of the (unconditional) probability of a tax increase and the joint
probability that the wigs will be elected and there will be no tax increase is closest to:

a) 55%
b) 70%
c) 85% - Answer-86.4% = C

The unconditional probability of a tax increase is: 0.2(0.32) + 0.8(0.6) = 54.4%.
The joint probability that the Wigs will be elected and there will be no tax increase is:
0.8(0.4) = 32%. The sum is: 54.4 + 32 = 86.4%.

An analyst who wants to display the relationship between two variables graphically is
most likely to use:

a) a histogram
b) a scatterplot
c) a frequency polygon - Answer-B = Scatterplot

Scatterplots illustrate the relationship between two variables.
Histograms and frequency polygons show the distribution of observations for a single
variable.

Ralph will retire 15 years from today and has saved $121,000 in his investment account
for retirement. He believes he will need 37,000 at the beginning of each year for 25
Years of retirement, with the first withdrawal on the day he retires. Ralph assumes his
account will earn 8%. The amount he needs to deposit at the beginning of this year and
each of the following 14 Years (15 in all) is closest to:

a) 1350

, b) 1450
c) 1550 - Answer-B = 1450

Step 1:
Calculate the amount needed at retirement at t = 15, with your calculator in BGN mode.
N = 25, FV = 0, I/Y = 8, PMT = 37,000, CPT PV = -426,564
Step 2:
Calculate the required deposits at t = 0,1,....,14 to result in a time 15 value of 426,564,
with your calculator still in BGN mode.
PV = -121,000, N = 15, I/Y = 8, FV = 426,564, CPT PMT = -$1,457.21

The current price of Bosto shares is $50. Over the coming year, there is a 40%
probability that share returns will be 10%, 40% probability returns will be 12.5%, and a
20% probability share returns will be 30%. Bostos expected return and standard
deviation of returns for the coming year are closest to:

a) E(R) = 15% Standard Dev = 7.58%
b) E(R) = 17.5% Standard Dev = 5.75%
a) E(R) = 17.5% Standard Dev = 7.58% - Answer-A

E[R] = (0.4)(10) + (0.4)(12.5) + (0.2)(30) = 15%

Variance = (0.4)(10 − 15)2 + (0.4)(12.5 − 15)2 + (0.2)(30 − 15)2 = 57.5
Standard deviation=√57.5=7.58%

Nikki Ali and Donald Ankard borrowed $15,000 to finance their wedding and reception.
The fully amortizing loan at 11% requires equal payments at the end of each of the next
seven years. The principle portion of the first payment is closest to:

A) 1500
B) 1530
C) 1560 - Answer-B

The interest portion of the first payment is simply principal × interest rate = (15,000 ×
0.11) = 1,650.

Using a financial calculator: PV = 15,000, FV = 0, I/Y = 11, N = 7, CPT PMT= $3,183

Principal = payment − interest = 3,183 − 1,650 = 1,533

Which of the following statements about probability distributions is least accurate?

A) Continuous uniform distributions have cumulative distribution functions that are
straight lines from 0 to 1.
B) The probability that a continuously distributed random variable will take on a specific
value is always 0.

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