Answer:
that is a lot of things
Step-by-step explanation:
I don't know. I thought I did. sorry.
Answer: 331,250
Step-by-step explanation: hope it helps
Answer:
x = 2
Step-by-step explanation:

Answer: Our required probability is 0.99338.
Step-by-step explanation:
Since we have given that
n = 100
p = 0.200
So, 
So, we can apply normal approximation.
Mean = 20
Standard deviation = 
Since 
So, Probability that fewer than 30 but a packet after testing a free sample is given by

Hence, our required probability is 0.99338.