25. Under what circumstances would the following assumptions not be accurate?a. The assumption that the probability law describing the number of periods untilthe process goes out of control follows the geometric distribution.b. The assumption that an out-of-control condition corresponds to a shift of themean equal to Sơ.c. The assumption that the search cost is a fixed constant, a2.

a. Geometric distribution is a negative binomial distribution that defines the number of failures…

Answered: 25. Under what circumstances would 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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Consider the following data: Stock M N Average return 26% 16% Risk (Std. Dev.) 20% 10% If the return on stocks M and N are perfectly negatively correlated, what is the range of risk (std dev) associated with all possible portfolio combinations? A. Range of the risk: between 0= risk s10 % OB. Range of the risk: between 0 < risk 10% OC. Range of the risk: between 5% and 10%. OD. Range of the risk (std. dev): between 15% to 20% OE. None of the above
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
S5.1. The demand for a product of a company varies greatly from month to month. The probability distribution for the company’s monthly demand, based on the past two years of data, is given:Demand: 250 375 425 575Probability: 0.20 0.35 0.40 0.05.a) What is the expected value of the monthly demand?b) If each unit costs $40 and generates $60 in revenue, how much will the company gain or lose in a month if its production level is based on your answer to a) and the actual demand for the item is 250?
Dr. Wilson is considering investing a fixed sum of money in each of three business ventures. Assume that the probability distribution for the number of successful ventures out of three is as follows: X P(X) 0 .022 1 .194 2 .434 3 .350 What is the expected value for the number of successful ventures? What is the standard deviation for the number of successful ventures? What is the probability that Dr. Wilson will enjoy at least two successful ventures? What is the probability that Dr. Wilson will enjoy no successful ventures?
5. A pressure transducer regulates a climate control system in a factory. The transducer fails according to an exponential distribution with rate one failure every five years on average. a. What is the cumulative distribution function of the time until failure? b. What is the probability that a transducer chosen at random functions for eight years without failure? irteen Reliability and Maintainability c. What is the probability that a transducer that has functioned for eight years con- tinues to function for another eight years?
The probability that the standard normally distributed variable is between 1.011 and 2.8 is approximately equal to.
3. Draw the probability distribution of the function, find the mean, variance, and standard deviation of the profit in the instance below: A store has a monthly sale of P23,540, which deviates by P3,876. Now, the profit is calculated as 28% of the sales subtracted by the operating cost of P,5324.
A book seller has the following schedule of weekly. demand for the book "Elementary Quantitative Methods" No. of copies on demand : Probability : 100 200 300 400 500 .02 .05 .09 .12 .20 .15 Find the expected number of copies demanded per week.
Nicole has purchased the life insurance policy for her fish for the price of $200 per year and Nicole will receive $4000 in case if her fish passes away. The insurance company estimated the probability of her fish passing away during the length of the policy to be 0.5%. Let XX be the insurance company's profit. Answer the following questions: 1. Create the probability distribution table for XX : XX outcome profit xx ,$ P(X=x)P(X=x) fish passes away fish survives 2. Use the probability distribution table to find the following: E[X]=μX=E[X]=μX= dollars. (Round the answer to 1 decimal place.) SD[X]=σX=SD[X]=σX= dollars. (Round the answer to 1 decimal place.)
Assume that daily evaporation rates (E) have a uniform distribution with a = 0 and b = 0.35 inches/day. Determine the following probabilities:Pr (E ≥0.1) Pr (E ≤ 0.22) Pr (E = 0.2) Pr (0.05 ≤ E ≤ 0.15
A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Age Number of Customers <20<20 78 20-30 89 30-40 100 40-50 67 50-60 57 ≥60≥60 73 One customer is chosen at random for a prize giveaway.What is the probability that the customer is at least 20 but no older than 60? What is the probability that the customer is either older than 60 or younger than 40? What is the probability that the customer is at least 60? Enter your answers as either decimals or fractions, not as percents.
b. Demand for electricity next year is projected to be one of the following quantities: 18,000GWH with probability of 0.4, 25,000GWh with probability of 0.4, or 30,000GWH. i. If this year's demand is 17,500GWH, what should be the additional amount to plan against if the energy ministry would want to plan for the increase using expected value analysis? ii. What is the standard deviation of the suggested accompanying amount?

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