cfa一级investmenttools∶quantitativemethods(编辑修改稿)

cfa一级investmenttools∶quantitativemethods(编辑修改稿)内容摘要：

standard deviation. B. Sample mode. C. Sample mean. D. Population variance. D A parameter is any descriptive measure of a population. The population variance describes a population while the sample standard deviation, sample mean, and sample mode are each descriptive measures of samples. 17 Question ID: 19686 Which measure of scale has a true zero point as the origin? A. Ordinal scale. B. Nominal scale. C. Ratio scale. D. Interval scale. C Ratio scales are the strongest level of measurement。 they quantify differences in the size of data and have a true zero point as the origin. Question ID: 19687 Fifty mutual funds are ranked according to performance. The five best performing funds are assigned the number 1, while the five worst performing funds are assigned the number 10. This is an example of the: A. ratio scale. B. nominal scale. C. interval scale. D. ordinal scale. D The ordinal scale of measurement categorizes and orders data with respect to some characteristic. In this example, the ordinal scale tells us that a fund ranked ―1‖ performed better than an fund ranked ―10,‖ but it does not tell us anything about the difference in performance. Question ID: 19688 18 Which of the following statements regarding frequency distributions is FALSE? Frequency distributions: A. anize data into overlapping groups. B. work with all types of measurement scales. C. help in the analysis of large amounts of statistical data. D. summarizes data into a small number of intervals. A Data in a frequency distribution must belong to only one group or interval. Intervals are mutually exclusive and nonoverlapping. Question ID: 18880 Which of the following best describes a frequency distribution? A frequency distribution is a grouping of: A. selected data into classes so that the number of observations in each of the nonoverlapping classes can be seen and tallied. B. raw data into classes so that the number of observations in each of the nonoverlapping classes can be seen and tallied. C. independent classes so that they can be seen and tallied. D. dependent classes so that they can be seen and tallied. B By definition. Question ID: 18878 Use the results from the following survey of 500 firms to answer the question. 19 Number of Employees Frequency 300 up to 400 40 400 up to 500 62 500 up to 600 78 600 up to 700 101 700 up to 800 131 800 up to 900 88 The class frequency of the third class is: A. 500 B. 78 C. 180 D. 156 B The third class in 500 600 with a frequency of 78 Question ID: 19689 A stock is currently worth $75. If the stock was purchased one year ago for $60, and the stock paid a $ dividend over the course of the year, that is the holding period return? A. %. B. %. C. %. D. %. D 20 (75 – 60 + )/60 = % Question ID: 19371 A bond was purchased exactly one year ago for $910 and was sold today for $1,020. During the year, the bond made two semiannual coupon payments of $30. What is the holding period return? A. %. B. %. C. %. D. %. A HPY = (1,020 + 30 + 30 –910)/910 = or % Question ID: 18937 If an investor started with $1,000 and four months later ended up with $1,100, what would be their annualized holding period return? A. B. C. D. A HPR=1100/1000= which represents a 4 month total return of 10% that must be annualized. Annualized HPR = HPR1/n=()1/.333=()3= 21 Question ID: 19690 Within a frequency distribution, an interval: A. contains all members of a specified group. B. is a set of return values within which an observation falls. C. is calculated by taking the frequency divided by the total number of frequencies. D. is the difference between the largest and smallest values in a data set. B An interval within a frequency distribution is defined as the set of return values within which an observation falls. A population contains all members of a specified group。 the relative frequency is calculated by taking the frequency divided by the total number of frequencies。 and the range is the difference between the largest and smallest values in a data set. Question ID: 19373 Given the following frequency distribution: Return Frequency 10% up to 0% 5 0% up to 10% 7 10% up to 20% 9 20% up to 30% 6 30% up to 40% 3 What is the relative frequency of the 0 percent to 10 percent interval? A. %. B. %. C. %. D. %. 22 A Total number of frequencies = 30. 7/30 = %. Question ID: 19692 Given the following frequency distribution: Return Frequency 10% up to 0% 5 0% up to 10% 7 10% up to 20% 9 20% up to 30% 6 30% up to 40% 3 What is the relative frequency of the 30 percent up to 40 percent return interval? A. %. B. %. C. %. D. %. C Total number of frequencies = 30. 3/30 = % Question ID: 19693 In a frequency distribution histogram, the frequency of an interval is given by the: A. width of the corresponding bar. B. sum of the width of all bars. 23 C. height multiplied by the width of the corresponding bar. D. height of the corresponding bar. D In a histogram, intervals are placed on the horizontal axis, and frequencies are placed on the vertical axis. The frequency of a particular interval is given by the value on the vertical axis, or the height of the corresponding bar. Question ID: 19695 Given the following annual returns, what are the median and mode returns, respectively? 1995: 15%, 1996: 2%, 1997: 5%, 1998: 7%, 1999: 0%. A. Median Mode % % B. Median Mode % no mode exists C. Median Mode % % D. Median Mode no median exists % B Median: Arrange the return values from largest to smallest and take the middl。