Multiple Choice
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
You are the webmaster for your firm's web-site.From your records,you know that the probability that a visitor will buy something from your firm is 0.23.In one day,the number of visitors is 952.
-What is the probability that less than 200 of them will buy something from your firm? Use the normal approximation to the binomial.
A) 0.4279
B) 0.5721
C) 0.9279
D) 0.0721
Correct Answer:

Verified
Correct Answer:
Verified
Q1: If Z is a standard normal random
Q3: A normal random variable x has an
Q4: The normal probabilities are calculated using the
Q5: THE NEXT QUESTIONS ARE BASED ON THE
Q6: THE NEXT QUESTIONS ARE BASED ON THE
Q7: THE NEXT QUESTIONS ARE BASED ON THE
Q8: In a recent survey of high school
Q9: THE NEXT QUESTIONS ARE BASED ON THE
Q10: Checkout times in a grocery store follow
Q11: The probability is 0.2 that X is