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10) In a large bag of marbles, 30% of them are red. A child chooses 4 marbles from this bag. If the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles? A) 0.108 B) 0.176 C) 0.076 D) 0.265 f people take the

10) In a large bag of marbles, 30% of them are red. A child chooses 4 marbles from this bag. If the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles? A) 0.108 B) 0.176 C) 0.076 D) 0.265 f people take the

MATLAB: An Introduction with Applications
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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10) In a large bag of marbles, 30% of them are red. A child chooses 4 marbles from this bag. If the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles? A) 0.108 B) 0.176 11) The failure rate for taking the bar exam in Philadelphia is 41%. If 375 people take the 11) bar exam, what is the mean for the number of failures? A) 90.7 B) 138.1 C 153.8 C) 0.076 pen+BEAR 12) A computer store has 75 printers of which 35 are laser printers and 40 are ink jet printers. If a group of 10 printers is chosen at random from the store, find the mean of the number of ink jet printers. A) 2.5 B) 1.6 D 4.7 B) 0.086 C) 5.3 VINIC 13) A certain large manufacturing facility produces 20,000 parts each week. The manager of the facility estimates that about 1% of the parts they make are defective. What is the variance for the number of defective parts made each week? A) 200 B) 14.1 C) 138 (D) 198 B) 0.312 17) Find the probability P(X; 2): P(3, 8) A) 0.9714 B) 0.0013 dile insan D) 0.265 2 14) It is estimated that 40% of households own a riding lawn mower. A sample of 20 households is studied. What is the standard deviation of the number of households who INGT (20) (-40) (1 - 140) = 14.8 = 2.19089 own a riding lawn mower? B) 4.8 A) 2.1909 C) 8 D) 20 D) 221.3 2.0(8 15) The probability that federal income tax returns will have 0, 1, or 2 errors is 0.73, 0.23, and 0.04, respectively. If 10 randomly selected returns are audited, what is the probability that eight will have no errors, two will have one error, and none will have two errors? A) 0.192 C) 0.043 C) 0.3750 16) On a Saturday evening in Chicago, 34% of the people go out to dinner, 18% go out to see a movie, 13% go out to a party, and 35% stay home. If five people are randomly selected on Monday morning, what is the probability that all but one went out Saturday night? A) 0.181 C) 0.116 10) B D) 0.384 D) 0.048 D) 0.0286 12) _D__ 13) D 14) A 15) 16) 17)
Transcribed Image Text:10) In a large bag of marbles, 30% of them are red. A child chooses 4 marbles from this bag. If the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles? A) 0.108 B) 0.176 11) The failure rate for taking the bar exam in Philadelphia is 41%. If 375 people take the 11) bar exam, what is the mean for the number of failures? A) 90.7 B) 138.1 C 153.8 C) 0.076 pen+BEAR 12) A computer store has 75 printers of which 35 are laser printers and 40 are ink jet printers. If a group of 10 printers is chosen at random from the store, find the mean of the number of ink jet printers. A) 2.5 B) 1.6 D 4.7 B) 0.086 C) 5.3 VINIC 13) A certain large manufacturing facility produces 20,000 parts each week. The manager of the facility estimates that about 1% of the parts they make are defective. What is the variance for the number of defective parts made each week? A) 200 B) 14.1 C) 138 (D) 198 B) 0.312 17) Find the probability P(X; 2): P(3, 8) A) 0.9714 B) 0.0013 dile insan D) 0.265 2 14) It is estimated that 40% of households own a riding lawn mower. A sample of 20 households is studied. What is the standard deviation of the number of households who INGT (20) (-40) (1 - 140) = 14.8 = 2.19089 own a riding lawn mower? B) 4.8 A) 2.1909 C) 8 D) 20 D) 221.3 2.0(8 15) The probability that federal income tax returns will have 0, 1, or 2 errors is 0.73, 0.23, and 0.04, respectively. If 10 randomly selected returns are audited, what is the probability that eight will have no errors, two will have one error, and none will have two errors? A) 0.192 C) 0.043 C) 0.3750 16) On a Saturday evening in Chicago, 34% of the people go out to dinner, 18% go out to see a movie, 13% go out to a party, and 35% stay home. If five people are randomly selected on Monday morning, what is the probability that all but one went out Saturday night? A) 0.181 C) 0.116 10) B D) 0.384 D) 0.048 D) 0.0286 12) _D__ 13) D 14) A 15) 16) 17)
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