Question

Spray drift is a constant concern for pesticide applicators and agricultural producers. The inverse relationship between droplet size and drift potential is well known paper "Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition't investigated the effects of herbicide formulation on spray atomization, in a paper suggested the normal distribution with mean 1050 um and standard deviation 150 um was a reasonable model for droplet size for water (the "control treat sprayed through a 760 ml/min nozzle

 (a) What is the probability that the size of a single droplet is less than 1470 pm? At least 900 pm? (Round your answers to four decimal places.) less than 1470 um at least 900 m 

(b) What is the probability that the size of a single droplet is between 900 and 1470 pm? (Round your answer to four decimal places.) 

(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 um in size 

(d) If the sizes of five independently selected droplets are measured, what is the probability that at least one exceeds 1470 pm? (Round your answer to four de places 

You may need to use the appropriate table in the Appendix of Tables to answer this question. 

Answer 1