Question 4The first two columns of the accompanying table provide a frequency distribution, for the days to maturityof a sample of 40 short-temm investments. Calculate the mean and sample standard deviation.Days to maturity30-39Frequency140-496.50-596.60-6970-796.80-8990-99Question 5Below are the percentages of the population over 25 years of age who have completed 4 yearsof college or more in 50 states. Find the mean and standard deviation.Percentage15.2-19.619.7-24.124.2-28 628.7-33.133.2-37.637.7-42.142.2-46.6Frequency15186.1

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Answered: Question 4 The first two columns of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Observe the mean, the standard deviation, and the CV of the annual rate of return of the portfolio. Apple Historical Annual Stock Price Data Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change 2021 135.6974 129.4100 156.6900 116.3600 148.7600 12.11% 2020 95.3468 75.0875 136.6900 56.0925 132.6900 80.75% 2019 52.0640 39.4800 73.4125 35.5475 73.4125 86.16% 2018 47.2634 43.0650 58.0175 36.7075 39.4350 -6.79% 2017 37.6378 29.0375 44.1050 29.0050 42.3075 46.11% 2016 26.1510 26.3375 29.5625 22.5850 28.9550 10.03% 2015 30.0096 27.3325 33.2500 25.7800 26.3150 -4.64% 2014 23.0661 19.7546 29.7500 17.8494 27.5950 37.72% 2013 16.8798 19.6082 20.3604 13.9475 20.0364 5.42% 2012 20.5732 14.6868 25.0750 14.6868 19.0062 31.40% 2011 13.0002 11.7704 15.0800 11.2614…
ge=28 Returns on investment "A" are normally distributed, with mean return of US$8,500 per year and a standard deviation of US$1,000 per year. Which of the following categories of returns would you fall, if you desire to be in the top 5% of the returns from "A"? Select one: O a. US$8,500 – US$9,000 O b. US$9,800- US$10,500 c. More than US$9,700 O d. More than US$10,100
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The figure in the popup window, shows the one-year return distribution for RCS stock. Calculate: a. The expected return. b. The standard deviation of the return. Note: Make sure to round all intermediate calculations to at least five decimal places.
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In Table L-1, the total value of imports of Indonesian goods and services from China for the 2010-2019 period is reported on a quarterly basis. With this data you are asked to analyze it with the Trend model and Seasonal Index. Question: a. Calculate a moving average with the average period length of 4 or MA (4) [why four?] And put the results in a column. Beware of selecting the rows to place the average result. b. Calculate the moving average with the length of the average period is 2 from the data in column MA (4) and the result is given the symbol MA (2x4) and the result is placed in a column. Beware of selecting the rows to place the average result. c. Calculate the ratio to the Moving Average (Y / MA (2x4)) and place it in a new column! d. Calculate a seasonal index and interpret the results! e. Create a Deseasonalized data series and place it in a new column! f. Plot the Dessasonalized data series and read the long-term movement patterns of data! Remember that understanding of…
Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA= 2.0% + 0.40RM + eA RB = -1.8%+ 0.9RM + eB OM = 15%; R-squareA = 0.30; R-squareB = 0.22 What is the standard deviation of each stock? Note: Do not round intermediate calculations. Round your answers to 2 decimal places. Stock A Stock B Standard Deviation % %
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5. When the Pearson Product Moment Correlation is equal to -0.68, there is a ______ linear trend.

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Question 4 The first two columns of the accompanying table provide a frequency distribution, for the days to maturity of a sample of 40 short-tem investments. Calculate the mean and sample standard deviation. Days to maturity 30-39 Frequency 40-49 6. 50-59 60-69 6. 9. 70-79 80-89 90-99 457