) A survey of MTH 23 students was conducted regarding whether a student spendsat least three hours per week on homework and whether the student passed the class. Theresult of the survey is summarized in the table below:b)P(FC and AL3).Less than3 hours (LT3)c)P(FC LT3)At least3 hours (AL3)Passed class (PC)2268Failed class (FC)5012Total7280Find the probability that a student selected at random will:a)Pass the class,P(PC)Total9062152Failed the class and studied a least 3 hours a week,Failed the class given that he/her studied less than 3 hours a week

(a) The probability that the student selected at random will pass the class is obtained below as…

Answered: ) A survey of MTH 23 students was…

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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The percentage of mechanical-, civil-, aeronautical-, industrial-, and chemical-engineer- ing students in the course, Engineering Mathematics, is, respectively, 25, 20, 15, 22, and 18. The probability of a mechanical-, civil-, aeronautical-, industrial-, and chemical-en- gineering students getting the grade A is 0.7, 0.6, 0.8, 0.5, and 0.65, respectively. If a student chosen at random at the end of the semester earned an A in the course, find the probability of the student belonging to mechanical engineering.
The table below shows the results of a survey that asked 1058 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Support Oppose Unsure Total Males 153 333 9 495 Females 230 303 30 563 Total 383 636 39 1058 Find the probability that the person is not unsure or is female. P(is not unsure or is female)=
A study was conducted to determine if the results of a test indicated whether a disease was present or not in 200 trials. The results are listed in the table below. Presence of Disease Test Result Total + Result − Result Present 84 3 87 Not Present 7 106 113 Total 91 109 200 What is the probability that a randomly selected subject received positive results or they received negative results?
The table below shows the results of a survey that asked 1079 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). =TTTE Support Oppose Unsure Total Males 171 332 8 511 Females 245 298 25 568 Total 416 630 33 1079 (a) Find the probability that the person opposed the tax or is female. P(opposed the tax or is female) =| (Round to the nearest thousandth as needed.) (b) Find the probability that the person supports the tax or is male. P(supports the tax or is male) =| (Round to the nearest thousandth as needed.) (c) Find the probability that the person is not unsure or is female. P(is not unsure or is female) = (Round to the nearest thousandth as needed.)
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.
A manufacturer received an order of 105 computer chips. Unfortunately, 5 of the chips are defective. To test the shipment, the quality-control engineer randomly selects 5 chips from the box of 105 and tests them. What is the probability of obtaining 2 defective chips? O A. 0.01675 O B. 0.10328 O C. 0.19528 O D. 0.02833
Tanisha made the following two-way table about the color and pattern of the socks she owns. White Yellow Red Total Patterned 4 10 20 Solid 16 2 24 Total 20 12 12 44 What is the probability that one of Tanisha's socks is patterned given that it is red? 0.833 0.500 0.200 0.727
A car insurance company has determined that 9% of all drivers were involved in a car accident last year. Among the 10 drivers living on one particular street, 3 were involved in a car accident last year. If 10 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year? O a. O b. O C. O d. 0.4435 0.9548 0.0541 0.0452
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.
The table below shows the results of a survey that asked 2853 people whether they are involved in any type of charity work. A person is selected at random from the sample. Complete parts (a) through (d). Occasionally Frequently 223 Not at all Total Male 453 793 1469 Female 205 430 749 1384 Total 428 883 1542 2853 (a) Find the probability that the person is frequently or occasionally involved in charity work. P(being frequently involved or being occasionally involved) = 0.460 (Round to the nearest thousandth as needed.) (b) Find the probability that the person is female or not involved in charity work at all. P(being female or not being involved) = (Round to the nearest thousandth as needed.)
The table below shows the results of a survey that asked 2866 people whether they are involved in any type of charity work. A person is selected at random from the sample. Complete parts (a) through (d). Frequently Male Occasionally Not at all Total 222 455 798 1475 Female 202 440 749 1391 Total 424 895 1547 2866 (a) Find the probability that the person is frequently or occasionally involved in charity work. P(being frequently involved or being occasionally involved) =| (Round to the nearest thousandth as needed.) Enter your answer in the answer box and then click Check Answer. 3 parts remaining Clear All Check Answer P Type here to search a 12:56 PM 99+ 20 4/4/2021 ort se సలంు 144 insert 14 IDI & $ 4 @ # 8. 9. %3D + backspace Yome R. Y U tab A F G caps lock Daave D.

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