Visit your local library: On a recent Saturday, a total of 1248 people visited a local library. Of these people, 241 were under age10, 467 were aged 10-18, 157 were aged 19-30, and the rest were more than 30 years old. One person is sampled at random.(a) What is the probability that the person is less than 10 years old?(b) What is the probability that the person is more than 10 years old?Part 1 of 2(a) What is the probability that the person is less than 10 years old? Round your answer to four decimal places.The probability that the person is less than 10 years old isPart 2 of 2(b) What is the probability that the person is more than 10 years old? Round your answer to four decimal places.The probability that the person is more than 10 years old is

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Answered: Visit your local library: On a recent…

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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Every year, the veterinary hospital at a major research university treats a number of horses that have stones called enteroliths in their guts. A sample of 20 years shows that on average about 2% of horses presenting at the veterinary hospital are treated for enteroliths. Some breeds of horses seem more prone to developing enteroliths than others. Below is a table with the distribution of enteroliths among the breeds. Breed Fijian Thoroughbred Morgan Quarter horse Probability 0.4 0.2 0.3 The probability that a horse arriving at the veterinary hospital is not a Fijian,Thorougbred, or a Quarter horse is:
Ch4. A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly picked from the process, what is the probability that the number of defectives exceeds 130?"
The table relates the weights and heights of a group of individuals participating in an observational study. Tall Medium Short Totals Obese 18 28 14 Normal 20 51 28 Underweight 12 25 9 Totals Find the probability a randomly chosen individual from this group is Tall or Underweight. Find the probability that a randomly chosen individual from this group is Normal given that the individual is Medium.
SUMMARY OUTPUT Regression Statistics Multiple R 0.503 R Square Adjusted R Square Standard Error Observations 50 ANOVA df MS Significance F Regression 2728.7 5.19 0.004 Residual 24161.8 525.3 Total 32348 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 132.6 23.51 5.89 0 91.03 185.67 Seconds -2.04 0.638 0.002 -3.401 -0.839 Female -64.1 31.4 -2.26 -137.33 -8.07 Seconds*Female 0.83 2.8 0.007 0.67 Based on the regression results, when testing to see if the coefficient on FEMALE is different than -120, what is the test statistic? (please express your answer using 2 decimal places)
A study of consumers smoking habits include 160 people in the 18-22 age bracket (49 of whom smoke), 133 people in the 23-30 age bracket (37 of whom smoke), and 85 people in the 31-40 age bracket (21 whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or does not smoke.
It was reported that 53% of people who had coronary bypass surgery in a recent year were over the age of 65. Fifteen coronary bypass patients are sampled. What is the probability that exactly 9 of them are over the age of 65? O 60.95% O 78.75% O 39.05% O 17.80%
The class I'm taking is statistics! I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. Thank you!
(This is a introduction to statistics course) From past records, a department store finds that 70% of the people who enter the store will make a purchase on Black Friday. Suppose that 3 customers are randomly selected at the store, answer the following questions: 1) What is the chance that exactly one out of three customers make a purchase? Give your answer (%) rounded to one decimal place. (For example, if your answer is 0.5125 (51.25%), then it will be 51.3% after being rounded to one decimal place.) 2) Explain clearly.
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
Aleem tossed a coin 50 times and recorded the results in a frequency distribution table. Outcome Frequency Heads 22 Tails 28 What is the experimental probability of tossing a head?
Coronary bypass surgery: A healthcare agency reported that 84% of poeple who had coronary bypass surgery in 2008 were over the age of 65. Fourteen coronary bypass patiens are sampled. (a) What is the probability that exactly 8 of them are over the age of 65?

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