2. Adrian has 5 keys on a key chain and one of the keys is used to unlock his office door. If Adrian loses his key chain and the finder tries to sneak in his locked office by trying all the keys one by one, what is the probability that the door will be unlocked on the third trial?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 15CR
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nly sele
2. Adrian has 5 keys on a key chain and one of the keys is used to unlock his office door.
If Adrian loses his key chain and the finder tries to sneak in his locked office by trying
all the keys one by one, what is the probability that the door will be unlocked on the
third trial?
cy situa
3. A deck of cards contains 10 diamonds, 8 hearts, 5 clubs, and 7 spades. Ten cards are
chosen at random. What is the probability that four of these cards are diamonds?
4. Three coins are tossed until all heads appear. What is the probability that all heads will
appear on the 10th flip?
5. Sylvester, a proofreader, is working on a 500-page manuscript. He was told that there
are 300 typographical errors on the manuscript. What is the probability that there are
2 typographical errors on the page he is currently proofreading?
6. There are fifteen mobile phones in a box, 9 of which are iPhones. If a person takes ten
phones at random from the box, what is the probability that there are 6 iPhones in the
and 7
hat ist
Transcribed Image Text:nly sele 2. Adrian has 5 keys on a key chain and one of the keys is used to unlock his office door. If Adrian loses his key chain and the finder tries to sneak in his locked office by trying all the keys one by one, what is the probability that the door will be unlocked on the third trial? cy situa 3. A deck of cards contains 10 diamonds, 8 hearts, 5 clubs, and 7 spades. Ten cards are chosen at random. What is the probability that four of these cards are diamonds? 4. Three coins are tossed until all heads appear. What is the probability that all heads will appear on the 10th flip? 5. Sylvester, a proofreader, is working on a 500-page manuscript. He was told that there are 300 typographical errors on the manuscript. What is the probability that there are 2 typographical errors on the page he is currently proofreading? 6. There are fifteen mobile phones in a box, 9 of which are iPhones. If a person takes ten phones at random from the box, what is the probability that there are 6 iPhones in the and 7 hat ist
are rotten. What is the probability
manufactured keyboards an
eight keyboards Trisha cho
Solution:
P(X=10) = G X Ge
%3D
Extend Your Knowledge
For further readings or
visit the following Web site
https://www.mathsisfu
http://stattrek.com/m/
https://www.math.ua
(All Web sites were las
P(X = 10) = 0.1808
What Have I Learned So Far?
Solve the following problems using Poisson, geometric, or hypergeometric probability
distribution, whichever is applicable. Write your solutions and answers on a sheet of paper.
1. Kim, a quality control expert, is testing the embroidered tablecloth that her team
finished in a day. The product contains 50 square feet (ft) of cloth and the track record
history establishes I embroidery defect for every 20 ff of finished product. What is the
probability that Kim will detect 2 embroidery defects on the cloth?
Statistics and Probability
Transcribed Image Text:are rotten. What is the probability manufactured keyboards an eight keyboards Trisha cho Solution: P(X=10) = G X Ge %3D Extend Your Knowledge For further readings or visit the following Web site https://www.mathsisfu http://stattrek.com/m/ https://www.math.ua (All Web sites were las P(X = 10) = 0.1808 What Have I Learned So Far? Solve the following problems using Poisson, geometric, or hypergeometric probability distribution, whichever is applicable. Write your solutions and answers on a sheet of paper. 1. Kim, a quality control expert, is testing the embroidered tablecloth that her team finished in a day. The product contains 50 square feet (ft) of cloth and the track record history establishes I embroidery defect for every 20 ff of finished product. What is the probability that Kim will detect 2 embroidery defects on the cloth? Statistics and Probability
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