solve part d Spray drift is a constant concern for pesticide applicators and agr
ID: 2946999 • Letter: S
Question
solve part d
Spray drift is a constant concern for pesticide applicators and agricultural producers. The inverse relationship between droplet size and drift potential is well known. The paper "Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition investigated the effects of herbicide formulation on spray atomization. A figure in a paper suggested the normal distribution with mean 1050 ? m and standard deviation 150 ?m was a reasonable model for droplet size for water the control treatment") sprayed hrough a 76 m/ min nozze. (a) what is the probability that the size of a single droplet is less than 1350 ?m? At least 1000 ?m? (Round your answers to four decimal places.) less than 1350 ?m 0.9722 at least 1000 ?m 0.6305 (b) what is the probability that the size of a single droplet is between 1000 and 1350 ?m? (Round your answer to four decimal places.) 0.6077 (c) How would you characterize the smallest 2% of all droplets? (Round your answer to two decimal places.) The smallest 2% of droplets are those smaller than 741.9 ?m in size. (d) If the sizes of five independently selected droplets are measured, what is the probability that at least one exceeds 1350 ?m? (Round your answer to four decimal places.) 0.1315 X You may need to use the appropriate table in the Appendix of Tables to answer this question.Explanation / Answer
d)P(at least one exceeds 1350)=1-P(all of 5 are less than 1350)=1-(0.9772)5 =0.1089
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