The table below reports the number of observations of Agriculture Department and Mechanical Engineer students who had received an IQ test in the past 2 years cross-classified with students' race. Students Race Agriculture Department Mechanical Engineer Total Department Jordanian 319 738 1057 Palestinian 130 329 459 Syrian Saudi Arabian Total 88 402 490 41 95 136 578 1564 2142 (a) We select at random a subject who had an IQ test. What is the probability that student is Palestinian? (b) We select at random a subject who had an IQ test and learn that the student is from the Agriculture department. With that information, what is the probability that the student is Jordanian? (c) We select at random a subject who had an IQ test. What is the probability that the student is a Mechanical Engineer and Palestinian?

The table below reports the number of observations of Agriculture Department and Mechanical Engineer students who had received an IQ test in the past 2 years cross-classified with students' race. Students Race Agriculture Department Mechanical Engineer Total Department Jordanian 319 738 1057 Palestinian 130 329 459 Syrian Saudi Arabian Total 88 402 490 41 95 136 578 1564 2142 (a) We select at random a subject who had an IQ test. What is the probability that student is Palestinian? (b) We select at random a subject who had an IQ test and learn that the student is from the Agriculture department. With that information, what is the probability that the student is Jordanian? (c) We select at random a subject who had an IQ test. What is the probability that the student is a Mechanical Engineer and Palestinian?

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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Please help with question 11 with explanation Thank you
Assume that 900 births are randomly selected and 443 of the births are girls. Use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high.
Refer to the sample data for polygraph tests shown below. If one of the test subjects is randomly selected, what is the probability that the subject is not lying? Is the result close to the probability of 0.423 for a negative test result? Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) O Positive test results 15 41 Negative test results 30 11 The probability that a randomly selected polygraph test subject was not lying is (Type an integer or decimal rounded to three decimal places as needed.)
"A population comprises of 9 people. Their IQ scores were recorded as 95, 135, 70,85,90,100,100, 110 and 115.What is the probability that a person who takes the test will score between 90 and 110? Chosse closest possible answer." 72.34% 21.12% 15.34% 42.46% 50.12% correct option?
Use the data in the following table that shows results from a polygraph (lie detector) conducted by researchers Charles R. Honts and Gordon H. Barland. In each case, it was known if the subjects lied or did not lie, so the table indicates when the polygraph was correct. If two different subjects are randomly selected without replacement, find the probability that they both lied.
Please show all of them a,b,c,d, and e
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Indicated Drug Use Is Not Indicated Subject Uses Drugs 42 11 Subject Is Not a Drug User 17 34
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Mrs. Bukovac compiled the following table to compare the hand dominance of 200 Cleveland Heights High School students and what methods they prefer using to communicate with their friends. Communication method Cell phone/text In person Online 34 166 200 Total Hand Left-handed 12 13 domin ance Right-handed 43 72 51 Total 55 85 60 (a) If you choose a student at random, what is the probability they are left-handed, given that they communicate in person? (b) If you choose a student at random, are the events "left-handed" and "communicates by text" independent, based on the data above? Explain how you know.
A three dice is a six sided dice with only the numbers 1,2 and 3 . The usual numbers 4,5 and 6 are replaced by 1,2 and 3 respectively . 4 three-dice (with sides labeled 1,2 and 3) are rolled and the numbers face up on the 4 dice recorded . Give the sample space for this experiment . What is the probability that at least one of the dice rolled is showing a 2? What is the probability that at least one of the dice rolled is showing at 3 ?