A coin has a probability of p = 0.5 for getting a head in each toss. What is the expected number of trials to get the 3rd tail? What is the standard deviation of this probability distribution? What is the probability that you get the first tail within the 4th attempt?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

These are part of same problem. Please solve both properly. I dont need deatails. just make sure the right answer.. I just need the correct answer. You can use shorcuts but please give solve as fast as possible. I am running Out of time.

A coin has a probability of p = 0.5 for getting a head
in each toss.
What is the expected number of trials to get the 3rd
tail?
What is the standard deviation of this probability
distribution?
What is the probability that you get the first tail
within the 4th attempt?
Transcribed Image Text:A coin has a probability of p = 0.5 for getting a head in each toss. What is the expected number of trials to get the 3rd tail? What is the standard deviation of this probability distribution? What is the probability that you get the first tail within the 4th attempt?
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman