Which of the following stocks is riskier if you are considering investing in X or Y only?StockStandard Deviation Coefficient of Variation40%2.Y.40%O X and Y have the same risk because they have the same standard deviation.OXOY

Given Stock standard deviation coefficient of variation X 40% 2 Y 40% 4 We know that,…

Answered: Which of the following stocks is…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A population has a mean p= 79 and a standard deviation o = 12. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 36. %3D H=(Simplify your answer.) %3D (Simplify your answer)
A fitness center bought a new exercise machine called the Mountain Climber. They decided to keep track of how many people used the machine over a 3-hour period. Here X is the number of people who used the machine. X 0 1 2 3 4 PX 0.2 0.2 0.1 0.4 0.1 Find the mean,variance and standard deviation
IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the x-score that corresponds to a z-score of 2.33. O A. 139.55 B. 142.35 OC. 125.95 D. 134.95 nswer. DII F11 F10 公
A distribution of scores is approximately normal with a mean of 78 and a standard deviation of 8.6. Which of the following equations can be used to find the score x above which 33 percent of the scores fall? (A) 0.44 = x – 78 (8.6)? (B) 0.67 x – 78 (8.6)? x – 78 8.6 (C) 0.33 x – 78 (D) 0.44 = 8.6 x – 78 8.6 (E) 0.67 %3D
one z-score unit is equivalent to ______ of the distribution. a. the variance b. the range c. the standard deviation d. the mean e. the correlation coefficient
Suppose you have already calculated the mean, the average deviation, and the standard deviation of the weights in pounds of 20 third-graders. a. if these weights were converted to kilograms and the mean and the average deviation were once again calculated, would the second average deviation be (numerically) less than, greater than, or equal to the first average deviation? Explain your answer. b. If the standard deviation of these weights were calculated in kilograms, would it be (numerically) less than, greater than, or equal to the first standard deviation? Explain your answer
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Assume time to failure density function (in months) of transplanted kidneys has a Weibull distribution with shape factor of 3 and scale of 6. Use R and answer the following questions (enter your answers with 3 decimal points):
A population has a mean u =78 and a standard deviation o = 24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 36. H; =(Simplify your answer.) (Simplify your answer.)
You determine that the standard deviation for a sample of test scores is 0. This tells you that 1 all the test scores must be 0. 2 all the test scores must be the same value. 3 there is no straight-line association. 4 the mean test score must also be 0. 5 you made a mistake because the standard deviation can never be 0.
IQ tests supposedly measure our intelligence. They typically are ‘normed’ so that they have a mean of 100 and a standard deviation of 15. (Higher scores show higher intelligence.) Use the graph and use the z-score and percents from columns b and c in Table A, when relevant. If you scored 132, what is your z-score? (Interpret.) Use table A X, z(a), (b), and (c) X z (a) (b) (c) and use the graph! Write down or save your response to use in Part 2 of this quiz. Group of answer choices -2.53 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. 2.13 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. -2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 0.57 percentile rank and 99.43% of people scored smarter than me. 2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 99.43 percentile rank…
A population has a mean µ = 84 and a standard deviation o = 9. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 81. (Simplify your answer.) %D

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Which of the following stocks is riskier if you are considering investing in X or Y only? Stock Standard Deviation Coefficient of Variation 40% 2. Y. 40% O X and Y have the same risk because they have the same standard deviation. OX OY