The injury rate of a volleyball player is 20%. If he throws theball 100 times, and if you know that P (Z< 2.04) = 0.9793P (Z < 2) = 0.9544 ,P(Z > 2.5) =9938 , What is theprobability of scoring less than 30 ?

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Answered: The injury rate of a volleyball player…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 1CA

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A sample of executives were surveyed about loyalty to their company. One of the questions was, “If you were given an offer by another company equal to or slightly better than your present position, would you remain with the company or take the other position?” The responses of the 200 executives in the survey were cross-classified with their length of service with the companyLoyaltyLength of ServiceTotalLess than 1 year1 -5 years6-10 yearsMore than 10 yearsWould Remain1030575120Would Not Remain2515103080Total354515105200If an executive is selected from company what is the probability that:an executive who is loyal to the company (would remain), had 1-5 years of service length.

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The injury rate of a volleyball player is 20%. If he throws the ball 100 times, and if you know that P (Z< 2.04) = 0.9793 P (Z < 2) = 0.9544 ,P(Z > 2.5) =9938 , What is the probability of scoring less than 30 ?