A car has five traffic lights on its route. Independently of other traffic lights, each traffic light turns red as the car approaches the light (and thus forces the car to stop at the light) with a probability of 0.4. a Let K he a random variable that denotes the number of lights at which the car stops with parameters (5,0.4). What is the PMF of K? b. What is the probability that the car stops at exactly two lights? c. What is the probability that the car stops at more than two lights? d.What is the expected value and the variance of K?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
icon
Concept explainers
Topic Video
Question
1%99 ll
• A O
Assignment 3.pdf
...
SCST 310
Assignment# 3
Chapter# 4
Question# 1:
A car has five traffic lights on its route. Independently of other traffic lights, each traffic light turns red as the
car approaches the light (and thus forces the car to stop at the light) with a probability of 0.4.
a. Let K he a random variable that denotes the number of lights at which the car stops
with parameters (5,0.4), What is the PMF of K?
b. What is the probability that the car stops at exactly two lights?
c. What is the probability that the car stops at more than two lights?
d. What is the expected value and the variance of K
Question# 2:
The number of phone calls that arrive at a secretary's desk has a Poisson distribution with a mean of 4 per hour.
a What is the probability that no phone calls arrive within hour?
b. What is the prohability that more than 2 calls arrive within a given hour?
e. What is the prohability that exactly three calls arrive within a given hour?
Question# 3
The lifetime X of a system in weeks is given by the following PDF:
0.25 e-a2s x
fklx] =
x< 0
a. What is the expected value of X?
b. What is the CDF of X?
e. What is the variance of X?
d. What is the probability that the system will not fail within two weeks?
SCST 310
Assignment# 3
Chapter# 4
Question# 4:
A random variable X is uniformly distributed between 3 and 15. Find the following:
a The expected value of X.
b. The variance of X.
c. The probability that X lies between 5 and 10.
d. The probability that X is less than
Question# 5:
II
Transcribed Image Text:1%99 ll • A O Assignment 3.pdf ... SCST 310 Assignment# 3 Chapter# 4 Question# 1: A car has five traffic lights on its route. Independently of other traffic lights, each traffic light turns red as the car approaches the light (and thus forces the car to stop at the light) with a probability of 0.4. a. Let K he a random variable that denotes the number of lights at which the car stops with parameters (5,0.4), What is the PMF of K? b. What is the probability that the car stops at exactly two lights? c. What is the probability that the car stops at more than two lights? d. What is the expected value and the variance of K Question# 2: The number of phone calls that arrive at a secretary's desk has a Poisson distribution with a mean of 4 per hour. a What is the probability that no phone calls arrive within hour? b. What is the prohability that more than 2 calls arrive within a given hour? e. What is the prohability that exactly three calls arrive within a given hour? Question# 3 The lifetime X of a system in weeks is given by the following PDF: 0.25 e-a2s x fklx] = x< 0 a. What is the expected value of X? b. What is the CDF of X? e. What is the variance of X? d. What is the probability that the system will not fail within two weeks? SCST 310 Assignment# 3 Chapter# 4 Question# 4: A random variable X is uniformly distributed between 3 and 15. Find the following: a The expected value of X. b. The variance of X. c. The probability that X lies between 5 and 10. d. The probability that X is less than Question# 5: II
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Sample space, Events, and Basic Rules of Probability
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON