(e) Determine the mean and standard deviation number of credit cards from the probability distribution found in part (c). The mean is 3.11 credit cards. (Type an integer or a decimal. Do not round.) The standard deviation is credit cards. (Round to three decimal places as needed.)
(e) Determine the mean and standard deviation number of credit cards from the probability distribution found in part (c). The mean is 3.11 credit cards. (Type an integer or a decimal. Do not round.) The standard deviation is credit cards. (Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Using the table in part see please anser question in part e.

Transcribed Image Text:(c) Determine a probability distribution for the random variable, X, the number of credit cards issued to an individual.
x (# of cards) P(x)
x (# of cards) P(x)
1
0.14
6.
0.02
0.29
7
0.02
3
0.30
0.02
4
0.11
9.
0.02
0.07
10
0.01
(Type integers or decimals. Do not round.)
![One question from a survey was "How many credit cards do you currently have?" The results of the survey are provided. Complete parts (a) through (g) below.
Click the icon to view the survey results.
A.
В.
C.
D.
0.4
0.47
0.47
0.4]
0.3-
0.3-
0.3-
0.3-
0.2-
0.2-
0.2-
0.2-
0.1-
0.1-
0.1-
0.1-
0 2 4 6 8 10
# of credit cards, x
0 2
# of credit cards, x
4 6 8 10
0 2 4 6 8 10
# of credit cards, x
0 2 4
6 8 10
# of credit cards, x
Describe the shape of the distribution.
The distribution has one mode and is skewed right.
(e) Determine the mean and standard deviation number of credit cards from the probability distribution found in part (c).
The mean is 3.11 credit cards.
(Type an integer or a decimal. Do not round.)
The standard deviation is credit cards.
(Round to three decimal places as needed.)
Probability, P(x)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a2d4d80-cdb0-43d9-af03-99b246cbf538%2Ff23bca4e-1a38-4237-86ce-828d51700f55%2F3zl5dne_processed.png&w=3840&q=75)
Transcribed Image Text:One question from a survey was "How many credit cards do you currently have?" The results of the survey are provided. Complete parts (a) through (g) below.
Click the icon to view the survey results.
A.
В.
C.
D.
0.4
0.47
0.47
0.4]
0.3-
0.3-
0.3-
0.3-
0.2-
0.2-
0.2-
0.2-
0.1-
0.1-
0.1-
0.1-
0 2 4 6 8 10
# of credit cards, x
0 2
# of credit cards, x
4 6 8 10
0 2 4 6 8 10
# of credit cards, x
0 2 4
6 8 10
# of credit cards, x
Describe the shape of the distribution.
The distribution has one mode and is skewed right.
(e) Determine the mean and standard deviation number of credit cards from the probability distribution found in part (c).
The mean is 3.11 credit cards.
(Type an integer or a decimal. Do not round.)
The standard deviation is credit cards.
(Round to three decimal places as needed.)
Probability, P(x)
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