2 po The number of failures of a testing instrument from contamination particles on the product is a Poisson Random Variable with a mean of 0.03 failure per hour. What is the probability of at most one failure in a 24 - hour day? 0.513248 0.83721 0.162786 None
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- Let z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3 in Appendix I to find the probability. (Round your answer to four decimal places.)Between 0.55 and 1.77Y Honey Blonde Lace F... Pf iCampus Login Bb Week 11 – MAT3004... X A ALEKŠ - Šhasia Gibbs O RANDOM VARIABLES AND DISTRIBUTIONS Shasia Normal distribution: Finding a raw... A newspaper article reported that people spend a mean of 7.5 hours per day watching TV, with a standard deviation of 2.1 hours. A psychologist would like to conduct interviews with the 10% of the population who spend the most time watching TV. She assumes that the daily time people spend watching TV is normally distributed. At least how many hours of daily TV watching are necessary for a person to be eligible for the interview? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. I hours Aa Explanation Check © 2021 McGraw-HIII Eaucation. All Rignts keservea Terms oI Use i Privacy | Accessibility IIRemaining Time: 1 hour, 36 minutes, 24 seconds. v Question Completion Status: QUESTION 9 Let A and B be the two events of a sample S such that P(AUB) = 0.85, P(ANB) = 0.35,P(BNA) =0.30 What is P(A|B)? 11 11 5. 11 QUESTION 10 A normally distributed random variable X with variance o2 = 400 and P(x> 130) = 0.6554. Then the mean of X is O 122 O O
- Tire pressure monitoring systems (TPMS) warn the driver when the tire pressure of the vehicle is 26% below the target pressure. Suppose the target tire pressure of a certain car is 30 psi (pounds per square inch.) (a) At what psi will the TPMS trigger a warning for this car? (Round your answer to 2 decimal place.) When the tire pressure is below 22.2 .psi. (b) Suppose tire pressure is a normally distributed random variable with a standard deviation equal to 2 psi. If the car’s average tire pressure is on target, what is the probability that the TPMS will trigger a warning? (Round your answer to 4 decimal places.) ProbabilityNORMAL DISTRIBUTION 1.) It is measured that the average time vehicles travel from San Marino to San Vicente is 84.5 minutes with a standard deviation of 4.2 minutes. Find the probability that a vehicle from San Marino will arrive in San Vicente with a travel time between 58.6 minutes to 72.3 minutes. (Draw a box around your final answer.)40% Question* Consider that the mumber of flaws occurring in each 100 feet of material follows the Poisson distribution with an average of 2 flaws. The probability that in 250 feet of material will occur at least4 feet is: None of these 0.8753 0.7350 0.5595 Question
- 3 l 60% 2:18 p.m. Assignment3.pdf Rawalpindi Women University Assignment No:3 Course Code: STAT-1113 Course Title: Introduction to Probability & Statistics Instructor's Name: Arooj Toheed Semester: 1st & Section B Total Marks:10 Department: Physics Q:1: A random variable X is binomially distributed with mean 3 and variance 2.Compute 1. P(X<5) 2. E(2X-3) the probability that a person entering a bakery shop will purchase a loaf of bread is 0.9,what is the probability that at least one person among the next five entering the shop will not purchase bread? Q:3: If 3% of the electric bulb manufactured by a company are defective , find the probability that in a sample of 100 bulbs (i) more than 5 (ii) less than 2 will be defective. Q:4:Discuss the relationship between mean and variance of Hyper geometric distribution. Instructor's signature:HOW DO I COMPUTE THIS PROBLEM?Samples of size n- 9 are selected from a normal population withp -80with o- 18. What is the standard error for the distribution of sample means? OM-5 OM- 18 O M- 6 0 0
- Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% bond). For the past several years, assume the following data. Compute a 75% Chebyshev interval around the mean for x-values and also for y-values. Round your answers to the nearest hundredth. x: 13 0 36 25 34 27 28 –13 –13 –25 y: 10 –5 28 16 26 17 16 –5 –6 –10 Group of answer choicesSupposrr x is a binomial random variable and n = 10, p = 0.32 Calculate the standard deviation?Find the value that will be exceeded by a standard normal random variable z in 98.90% of the time.