When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000 radioactive atoms decayed to 972,323 radioactive atoms, so 27,677atoms decayed during 365 days.a. Find the mean number of radioactive atoms that decayed in a day.b. Find the probability that on a given day, 50 radioactive atoms decayed......a. The mean number of radioactive atoms that decay per day is(Round to three decimal places as needed.)b. The probability that on a given day, 50 radioactive atoms decayed, is(Round to six decimal places as needed.)

Given data while studying radio active material a nuclear engineer found that over 365 days…

Answered: When studying radioactive material, a…

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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According to a poll of adults, about 43% work during their summer vacation. Assume that the true proportion of all adults that work during summer vacation is p=0.43. Now consider a random sample of 400 adults. Complete parts a and b below. IN a. What is the probability that between 36% and 50% of the sampled adults work during summer vacation? The probability is. (Round to three decimal places as needed.) b. What is the probability that over 55% of the sampled adults work during summer vacation? The probability is (Round to three decimal places as needed.) 4
The mileage (in 1,000s of miles) that car owners get with a certain kind of radial tire is a random variable having an exponential distribution with a mean of 50. a. What is the probability that a tire will last at most 40,000 miles? b. What is the probability that a tire will last at least 65,000 miles? c. What is the probability that a tire will last between 70,000 and 80,000 miles?
In deciding how many customer service representatives to hire and in planning their schedules, it is important for a firm marketing electronic typewriters to study repair times for the machines. Such a study revealed that repair times have approximately an exponential distribution with a mean of 42 minutes. Find the probability that a repair time will last less than 17 minutes.
A company is conducting a survey to determine how prepared people are for a long-term power outage, natural disaster, or terrorist attack. The frequency distribution on the right shows the results. Use the table to answer the following question. Response Very prepared Somewhat prepared Not too prepared Not at all prepared Not sure Frequency 252 956 What is the probability that the next person surveyed is very prepared? 589 340 69 ..... The probability the next person surveyed is very prepared is (Round to three decimal places as needed.)
The quality control manager of Marilyn's biscuits is inspecting a batch of chocolate-chip biscuits that has just been baked. If the production process is in control, the mean number of chip parts per biscuit is 7.3. Complete parts (a) through (d). a. What is the probability that in any particular biscuit being inspected less than five chip parts will be found? The probability that any particular biscuit has less than five chip parts is (Round to four decimal places as needed.) b. What is the probability that in any particular biscuit being inspected exactly five chip parts will be found? The probability that any particular biscuit has exactly five chip parts is. (Round to four decimal places as needed.) c. What is the probability that in any particular biscuit being inspected five or more chip parts will be found? The probability that any particular biscuit has five or more chip parts is (Round to four decimal places as needed.) d. What is the probability that in any particular biscuit…
A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occurred in a certain town, which had 14,270 children. a. Assuming that this tumor occurs as usual, find the mean number of cases in groups of14,270children. b. Using the unrounded mean from part(a),find the probability that the number of tumor cases in a group of14,270children is 0 or 1. c. What is the probability of more than one case? d. Does the cluster of four cases appear to be attributable to random chance? Why or why not?
In a laboratory statistics class, Anne performed a random experiment to discussthe probability of an event. She rolled an unbiased die r times. Determine the following: a. The probability of obtaining one 6.b. The probability of obtaining no 6.c. The number of trials needed for the probability of at least one 6 to be ≥ 1/2
): A company that manufactures drip irrigation pipes. The mean life is 800 hours (= 800 hrs o = 60). Find the probability of a random sample (16 = n) if the arithmetic mean lies: between 785 and 815 hours and 130 hours
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The table summarizes results from pedestrian deaths that were caused by automobile accidents. Pedestrian Deaths Driver Pedestrian Intoxicated? Intoxicated? Yes NO. 09 283 Yes 564 NO. If two different pedestrian deaths are randomly selected, find the probability that they both involved pedestrians that were not intoxicated. Report the answer rounded to four decimal place accuracy. Question Help: Written Example Message instructor Submit Question Jump to Answer 43,324 MAR 080 8.
When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000 radioactive atoms decayed to 976,469 radioactive atoms, so 23,531 atoms decayed during 365 days. a. Find the mean number of radioactive atoms that decayed in a day. b. Find the probability that on a given day, 51 radioactive atoms decayed. a. The mean number of radioactive atoms that decay per day is (Round to three decimal places as needed.) b. The probability that on a given day, 51 radioactive atoms decayed, is (Round to six decimal places as needed.) C

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