SOLUTION: It is known that 73% of all seeds sprout. If we plant 1717 seeds what is the probability of seeds sprouting in an interval between 1251 and 1271? What is the probability of sprouti

Question 1192671: It is known that 73% of all seeds sprout. If we plant 1717 seeds what is the probability of seeds sprouting in an interval between 1251 and 1271? What is the probability of sprouting more than 1271?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
expected value=0.73*1717=1253.41
variance=np(1-p)=1253.41*0.27=338.42
sd=sqrt(V)=18.40
for 1251 z=(1250.5-1253.4)/18.40, using the continuity continuation factor=-0.16
for 1271 z=(1271.5-1253.4)/18.40, =0.98
probability of z between those two values is
=0.4000
-
> 1271 is z= (1271.5-1253.4)/18.4=0.98
that probability is 0.1635
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