Answer:
0.8213
Step-by-step explanation:
-This is a binomial probability problem given by the function:

Given that n=21 and p=0.2, the probability that she experience a delay on at least 3 days is calculated as:

Hence, the probability that she experience delay on at least 3 days is 0.8213
Answer:
so you want me to attatch an imagine of working out?
C.
12/30=0.4
You should really learn how to do probabilities. They don't go away after like the sixth grade.
Square prism
because of the two squares on the side and it’s a prism not a pyramid because it just isn’t lol
Answer:
r= 3 h = 6 then use 3^2 + 6^2 = l^2
Step-by-step explanation: