Review Questions for the Midterm Exam Part I. All the Homeworks and Quizzes (50% of the Midterm Exam) Part II. Additional Review Questions 1. Which of the following statements is correct? a) The range is a measure of central tendency. b) The median is a measure of dispersion. c) For a symmetric distribution‚ the mean is equal to the median. d) For a skewed distribution‚ the variance is a negative number. e) The variance is a measure of central tendency. 2. After
Premium Arithmetic mean Standard deviation Normal distribution
_NORMAL PROBABILITY DISTRIBUTION_ is given by a bell-shaped(symmetric) curve. THE STANDARD NORMAL DISTRIBUTION The normal distribution with and is called the _STANDARD NORMAL DISTRIBUTION._ Example 1: Find the area under the standard normal curve between z = 0 and z = 1.95 from z = -2.17 to z = 0 Area to the right of z = 2.32 Area to the left of z = -1.54 Example 2a: Find the following probabilities for the standard normal curve. (a) (b) (c) Example 2b: Find the value of _k_ if (a)
Premium Normal distribution Standard deviation Probability theory
Dagoberto Gonzalez Paez Student ID --65824138 November 28‚ 2013 1. Suppose that you can trade a riskless asset that yields 5% and two risky assets A and B. The expected return of asset A is 8% and that of asset B is 11%‚ while the standard deviation of asset A is 14% and that of asset B is 23%. The covariance between assets A and B is ?0:0322. Solution . rA‚B= CovAR(A‚B) / [(σA)(σB)] = -0.0322 / (14%)(23%) rA‚B = -1 But when rA‚B = -1‚ (σp)^2 = [wA(σA) – wB(σB)]^2‚ σp
Premium Standard deviation Variance Investment
Instructions for Efficient-Frontier Construction a. Estimation The goal is to obtain the raw ingredients – expected returns‚ standard deviations and correlations. Historical data are used for this purpose. As a rule of thumb‚ five years of daily data are probably right (one year should be the absolute minimum). Keep in mind the following: 1) make sure to use the adjusted close prices to calculate returns (so that you won’t have large‚ spurious negative returns due to dividend payments or splits)
Premium Standard deviation Arithmetic mean Addition
determine that g was 9.7993 ± 0.0010 m/s2 which was 0.0653 % from the known value. If we took into account the period difference‚ we found that g was 9.7982 ± 0.0083 m/s2 which is 0.0552 %. Both methods gave us results well within our goal of 0.2% deviation from the expected value. I. INTRODUCTION is equal to τ = I0 α (II.2) In the course of the author’s physics degree‚ no constant has been so ubiquitous as the local acceleration due to gravity. As such‚ it proves an important pedagogical
Premium Standard deviation Pendulum Arithmetic mean
locates the center of a distribution of values. The three types of the central tendency are the mean‚ the median and the mode. Secondly‚ we will look at the dispersion which is the spread of values around the central tendency (Dodge 2003). The standard deviation is a more accurate way of measuring the dispersion. Thirdly‚ the use of graphics and tables to illustrate the data collected in a visual background. Fourthly there is the frequency distribution. In the frequency distribution is a summary
Premium Standard deviation
Statistics‚ 47 (1)‚ 13–37. [Merton 1973] Merton‚ R.C.‚ (1973)‚ An Intertemporal Capital Asset Pricing Model. Econometrica 41‚ Vol. 41‚ No. 5. (Sep.‚ 1973)‚ pp. 867–887 [Sharpe 1964] Sharpe‚ William F Figure 1a. Monthly percent standard deviations of the returns to the Standard & Poor’s composite portfolio‚ ‚ estimated from returns for days i within the month t‚ ‚ 1963-84.
Premium Standard deviation Variance
= 20 Leaf Unit = 1.0 9 0 124456667 (3) 1 249 8 2 128 5 3 03 3 4 27 1 5 2 Calculating Descriptive Statistics 4. Calculate descriptive statistics for the variable Height by Gender – Gender Mean Standard deviation Females 67.273 2.533 Males 69.78 4.21 Select File > Save Worksheet As to save the data set. You must either keep a copy of this data or download it again off the web site for future labs. Short Answer Writing Assignment
Premium Standard deviation Arithmetic mean Gender
instruction issued and priciples established. Controlling is to ensure there is effective and efficient utilization of organizational resources to achieve the planned goals. Controlling measures the deviation of actual performance from the standard performance‚ discover the causes of such deviations and taking necessary corrective actions. Measuring actual performance In 2 weeks duration the directors and high committee will have meetings to discuss about the current situation of the MMU Career
Premium Standard deviation Statistics Maxima and minima
Descriptive analysis in excel has been used to come up with relevant figures of the given data samples which is tabulated below: Descriptive Statistics | Current | Proposed | Mean | 75.06557 | 75.42623 | Standard Error | 0.505094 | 0.32091 | Median | 76 | 76 | Mode | 76 | 76 | Standard Deviation | 3.944907 | 2.506385 | Sample Variance | 15.5623 | 6.281967 | Kurtosis | -0.06933 | 0.58694 | Skewness | -0.22053 | -0.28749 | Range | 19 | 13 | Minimum | 65 | 69 | Maximum | 84 | 82 | Sum
Premium Standard deviation Arithmetic mean Variance