Consider the following returns and states of the economy for TZ.Com.:Economy Probability ReturnWeak 15%-9%Normal 50%1%Strong 35%6%What is the standard deviation of TZ's returns? SET YOUR CALCULATOR TO FOUR DECIMALPLACES AND ROUND TO 2 DECIMAL PLACES AT THE END. DO NOT ENTER THE %. FOREXAMPLE, IF YOUR ANSWER IS 7.7011% ENTER IT AS 7.70.

Here the given table is:-Economy probability return Weak 15%-9%Normal 50%1%Strong35%6We have to find…

Answered: Consider the following returns and…

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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STATISTICS & PROBABILITY Direction: Solve the following problems. Round off your answer to two decimal places. Use the percentage form and include the percentage symbol (%) The length of time needed to do a particular activity is normally distributed with a mean of 2 hours and a standard deviation of 1.25 hours. What is the probability that a randomly selected student will spend 3.5 hours in doing the activity? The monthly food expenditure of a single person is 3000Php on average with a standard deviation of 300Php. Assuming that the monthly food expenditure is normally distributed, what percentage of these expenditures are between 2400Php and 4000Php? Find the area to the right of z = 1.37 Select one: A. 8.53% B. 43.45% C. 31.76% D. 47.88% Find the area between z = 0.46 and z = 2.56 Select one: A. 43.45% B. 31.76% C. 30.15% D. 97.98% Find the area between z = 0 and z = -2.03 Select one: A. 43.45% B. 47.88% C. 8.53% D. 31.76% Find the area to the left…
Mr. Dela Cruz works for a New York theatrical agency whose employees had an average income last year of $28,000 with a standard deviation of $3,000. How much did Mr. dela Cruz earn last year if his z score is -0.8?O $25,600O -$30,400O $11,400O $45,600O $30,400
Accrotime is a manufacturer of watches. Accotime researchers have shown that watches hwe an average life of 28 months before certain electronic components deteriorate causing the watch to become unreliable. The standard deviation of watch lifetimes is 5 months and the distribution is noemal. If Accrotime guarantees a full refund of any defective watch for 1.5 years after the purchase, what percentage of total production will the company expect to replace? Write your answer as a percentage rounded to 1 decimal place. For the toolbar, Press ALT+F10 (PC) or ALT+FN+F10 OMCA) 0 WOAOS POWEASD BY TINY
Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $24 minutes. The 16th percentile is a phone call that lasts minutes.
%24 Suppose a statistics professor reports a final exam average of 82 with a standard deviation of 4 points. Which of these correctly explains where a score of 72 falls within the distribution? A.O It is exactly 3 standard deviations from the mean. B.O It is exactly 2 standard deviations from the mean. C.O It is within 3 standard deviations of the mean. D.O It is more than 3 standard deviations from the mean Copyright © 2021 Illuminate Education, Inc O Type here to search 口 Lenovo Esc Home FnLock F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 # &
A distribution of values is normal with a mean of 120 and a standard deviation of 4.Find the interval containing the middle-most 68% of scores: Enter your answer using interval notation. Example: (2.1,5.6)
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
Joey and Dee Dee bowled five games at the Rock 'n' Bowl Lanes. Their scores are given in the following table. Joey 143 170 219 157 146 Dee Dee 183 166 188 143 160 (a) Find the mean score of each bowler. (Round the answer to one decimal place.) Joey X = Dee Dee x = (b) Find the standard deviation of each bowler's scores. (Round the answer to one decimal place.) Joey S = Dee Dee s =
The average number of kilos of meat a person consumes in a year is 90 kilos. Assume that the standard deviation is 10 kilos and the distribution is approximately normal. If a sample of 45 individuals is selected, find the probability that the mean of the sample will be 87 kilos or greater per year. Express your answer in percent form with 2 decimal places (with percent symbol - e.g. 10.00%) type your answer...
For each probability and percentile problem, draw the picture.Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to 12 minutes. Part (g) Find the probability that a phone call lasts less than 13 minutes. (Round your answer to four decimal places.) Part (h) Find the probability that a phone call lasts more than 13 minutes. (Round your answer to four decimal places.) Part (i) Find the probability that a phone call lasts between 9 and 13 minutes. (Round your answer to four decimal places.)
The average number of kilos of meat a person consumes in a year is 100 kilos. Assume that the standard deviation is 11 kilos and the distribution is approximately normal. If a sample of 40 individuals is selected, find the probability that the mean of the sample will be 105 kilos or greater per year. Express your answer in percent form with 2 decimal places (with the percent symbol - e.g. 10.00%). type your answer... Next
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?

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