4. a) There are three types of discrete variables. List down at least two types of discrete random variables and elaborate the characteristics each of them. b) The customer service workers in a telecommunications department receives an average of 15 calls per hour. What is the probability that between 12.00 am - 12.10 am there will be 2 calls?
Added by Amira
Step 1
- **Bernoulli Random Variable**: This type of variable has only two possible outcomes, typically labeled as 0 and 1. It is used to model scenarios with two possible outcomes, such as a coin toss (heads or tails), or whether an event occurs or not (success or Show more…
Show all steps
Close
Your feedback will help us improve your experience
Aarti Kumari and 74 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Suppose that the average number of incoming calls per hour to a customer service center of a small credit union is 5 calls. (a) Find the probability that time between two calls is less than 15 min. (b) Find the probability that time between two calls is more than 20 min.
Madhur L.
Question 1 (7 points): The number of telephone calls arrives at a call center at an average 10 calls per hour. (a) What is the probability that there are exactly 15 calls in a period of two hours? (b) What is the probability that there are exactly 15 calls in a period of two hours given that 5 calls were received during the first hour?
Wei Z.
The average number of calls received by a switchboard in a 30-minute period IS 15. What is the probability thal between 10.00 and 10.15 the switchboard will receive more than calls but fewer than 15 calls?
Sri K.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD