4) The FLOW RITE pen company knows that the pens it produces will be defective withprobability 0.03 (independently of one another). FLOW RITE sells its pens in packetsof 8 and offers a money back guarantee that at most 1 of the 8 pens in a packet willbe defective.(a) What is the probability that none of the pens in a packet will be defective?(b) What is the probability that at least one of the pens in a packet will be defective?(c) What proportion of the packages will be returned (assuming that customers al-ways take advantage of the guarantee)?(d) If someone buys five packets, what is the probability that exactly one of them willbe returned?

The FLOW RITE pen company knows that the pens it produces will be defective with probability 0.03…

Answered: (a) What is the probability that none…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

A fair coin is tossed 9 times. (A) What is the probability of tossing a tail on the 9th toss, given that the preceding 8 tosses were heads? (B) What is the probability of getting either 9 heads or 9 tails? ... (A) What is the probability of tossing a tail on the 9th toss, given that the preceding 8 tosses were heads?
11. Find the probability of the indicated event if P(E) = 0.20 and P(F)= 0.35. Find P(E and F) if P(E or F)= 0.30 P(E and F) = (Simplify your answer.)
Find the missing probability. 7) P(A) = 0.4 P(A and B) = 0.18 P(BA) = ? 9) P(A and B) = 0.035 P(BA)=0.05 P(A) = ? 11) P(B) = 0.5 P(A/B) = 0.54 P(A and B) = ? 13) P(A)=0.35 P(A and B)= 0.14 P(B|A) = ? 8) P(A and B) = 0.1 P(BA)=0.25 P(A) = ? 10) P(A)=0.6 P(BA) = 0.55 P(A and B) = ? 12) P(B) = 0.25 P(A and B)=0.07 P(A/B) = ? 14) P(A and B) = 0.08 P(BA)=0.4 P(4)= ? -1-
19. The chance for precipitation (rain) in Washington, DC this weekend is about 40% everyday. (a) What is the probability that it will rain on Friday, Saturday, and Sunday? (b) What is the probability that there won't be any rain day this entire weekend.
4. Answer the following: (a) A day of the week is selected at random. What is the probability that it is a weekend day? (b) A single card is drawn from a deck of 52 cards. What is the probability that it is a king or a club? (c). The probability of rain tomorrow is 0.7. The probability that it will snow is 0.5. The probability of both rain and snow is 0.3. What is the probability that it will either rain or snow tomorrow?
17. Made in America In a recent Harris Poll, a random sample of adult Americans (18 years and older) was asked, "When you see an ad emphasizing that a product is 'Made in America,' are you more likely to buy it, less likely to buy it, or neither more nor less likely to buy it?" The results of the survey, by age group are presented in the following contingency table 18-34 35-44 45-54 55+ More likely 238 329 360 402 1329 Less likely 22 22 16 66 282 Neither more 201 164 118 765 nor less likely Total 542 536 546 536 2160 Source: The Harris Poll

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