SOLUTION: The number of people entering Bart's Diner for lunch on Friday is a random variable,N,with distribution Xi 0 1 2 3 Pi .2 .4 .3 ? a) what is P(N = 3)? b) What is the probabi

Click here to see ALL problems on Probability-and-statistics

Question 625259: The number of people entering Bart's Diner for lunch on Friday is a random variable,N,with distribution
Xi 0 1 2 3
Pi .2 .4 .3 ?
a) what is P(N = 3)?
b) What is the probability that at most two people eat at the diner during lunch on Friday?
c)How many people should Bart expect for lunch at the diner on Friday?
Answer by oscargut(2103) (Show Source):
You can put this solution on YOUR website!
The number of people entering Bart's Diner for lunch on Friday is a random variable,N,with distribution
Xi 0 1 2 3
Pi .2 .4 .3 ?
a) what is P(N = 3)?
b) What is the probability that at most two people eat at the diner during lunch on Friday?
c)How many people should Bart expect for lunch at the diner on Friday?
Answers:
a) 0.1
b) 0.9
c) 1.3
If you have any doubt or if you have more problems my e-mail is:
mthman@gmail.com