Construct the probability distribution tables for the random variables; the number of questions answered correctly, X and total marks obtained, Y respectively. Next, identify the mean and standard deviation for the random variable, Y and explain the type of this variable.

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
A mathematics quiz with five multiple-choice questions with three choices of answers
with only one correct answer was administered for the PPISMP June Intake students.
A student obtains 2 marks for each correct answer and loses one mark for each wrong
answer.
Construct the probability distribution tables for the random variables; the number of
questions answered correctly, X and total marks obtained, Y respectively. Next,
identify the mean and standard deviation for the random variable, Y and explain the
type of this variable.
Transcribed Image Text:A mathematics quiz with five multiple-choice questions with three choices of answers with only one correct answer was administered for the PPISMP June Intake students. A student obtains 2 marks for each correct answer and loses one mark for each wrong answer. Construct the probability distribution tables for the random variables; the number of questions answered correctly, X and total marks obtained, Y respectively. Next, identify the mean and standard deviation for the random variable, Y and explain the type of this variable.
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
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