A discrete random variable X follows the following distribution: X O 1 2 3 4 S probability 0.08 0.21 0.32 0.27 0.07 0.04 a) Determine the expected value for X. b) Determine the standard deviation for X. c) Find the probability that X is less than 3. d) Find the probability that X is at least 4. 6 0.01 7 or more
A discrete random variable X follows the following distribution: X O 1 2 3 4 S probability 0.08 0.21 0.32 0.27 0.07 0.04 a) Determine the expected value for X. b) Determine the standard deviation for X. c) Find the probability that X is less than 3. d) Find the probability that X is at least 4. 6 0.01 7 or more
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 6CR
Related questions
Question
100%
UPVOTE WILL BE GIVEN. WRITE THE COMPLETE SOLUTIONS. NO LONG EXPLANATION NEEDED. ANSWER IN 3 DECIMAL PLACES.
Transcribed Image Text:. A discrete random variable X follows the following distribution:
S
4
0.27 0.07 0.04
X
0
1
probability 0.08 0.21 0.32
a) Determine the expected value for X.
b) Determine the standard deviation for X.
c) Find the probability that X is less than 3.
d) Find the probability that X is at least 4.
2 3
6
0.01
7 or more
O
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps
Recommended textbooks for you
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,