Question

for a certin section of pine forest , the number of diseased trees per acre ,x has a poisson distribution with mean lambda equal to 9 .the diseased trees are with an insecticide at the cost of R2 per tree ,plus a fixed overhead cost for equipment rental of R60.letting Y denote the total spraying cost per acre. suppose the forester wants the total spraying cost of Y to be within 2 units of the population mean at least 75% of the time.what is the largest value of varience,the varience of y that can tolerance if the forester's objectives are to be met?

Answer 1

@REMAINDER

Answer 2

p of 0.75 is 0.678
then solve n on z using x bar as ur E(Y) mean use that one of poisson even std
do thi first

Answer 3

eix are we looking for n or Ci

Answer 4

ci

Answer 5

come @ lapolowa. i cant find n

Answer 6

ok

Answer 7

owk,how do we find n or e tla ko lapolowa