1. A random variable X is defined as the number of heads observed when a coin is tossed 3 times. The probability distribution for this random variable is shown below. X P(X) 0 Which of the following statements is not true? 1 38 3 2 33 8 a. The probability of no heads is the same as the probability of 3 heads b. The most likely outcome is 2 heads c. The expected value is 1.5 d. The probability of not tossing 2 heads is greater than the probability of tossing 2 heads 2. The following table is a valid probability distribution for a random variable X. What must be the value for P(2) to complete the table? a. 0.15 b. 0.2 c. 0.25 d. 0.3 X P(X) 0 0.15 1 0.25 2 3 0.4 3. In the following expression, which value represents the number of trials: (3) (0.8)³ (0.2)² a. 2 c. 3 b. 5 d. 0.8 1

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
100%

Please answer the question ill make sure to thumbs up please make sure its right, ill like on multiple accounts thanks again. cross checking answers 

1. A random variable X is defined as the number of heads observed when a coin is tossed 3 times. The
probability distribution for this random variable is shown below.
X
P(X)
0
Which of the following statements is not true?
1
38
3
2
33
8
a. The probability of no heads is the same as the probability of 3 heads
b. The most likely outcome is 2 heads
c. The expected value is 1.5
d. The probability of not tossing 2 heads is greater than the probability of tossing 2 heads
2. The following table is a valid probability distribution for a random variable X. What must be the value for
P(2) to complete the table?
a. 0.15
b. 0.2
c. 0.25
d. 0.3
X
P(X)
0
0.15
1
0.25
2
3
0.4
3. In the following expression, which value represents the number of trials: (3) (0.8)³ (0.2)²
a. 2
c. 3
b. 5
d. 0.8
1
Transcribed Image Text:1. A random variable X is defined as the number of heads observed when a coin is tossed 3 times. The probability distribution for this random variable is shown below. X P(X) 0 Which of the following statements is not true? 1 38 3 2 33 8 a. The probability of no heads is the same as the probability of 3 heads b. The most likely outcome is 2 heads c. The expected value is 1.5 d. The probability of not tossing 2 heads is greater than the probability of tossing 2 heads 2. The following table is a valid probability distribution for a random variable X. What must be the value for P(2) to complete the table? a. 0.15 b. 0.2 c. 0.25 d. 0.3 X P(X) 0 0.15 1 0.25 2 3 0.4 3. In the following expression, which value represents the number of trials: (3) (0.8)³ (0.2)² a. 2 c. 3 b. 5 d. 0.8 1
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,