An online store conducted a study to see how many different web pages their customers visited (above the minimum necessary) before finding their desired product. The study resulted in the discrete probability distribution shown below, Let X be the number of pages visited before finding their desired page. Using this distribution, compute the expected value of X. X-x 0 1 2 3 P(X-x) PMF 0.4600 0.3200 0.1800 0.0400 P(XSX) CDF 0.4600 0.7800 0.9600 1.0000

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.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 2E
icon
Related questions
Question
An online store conducted a study to see how many different web pages
their customers visited (above the minimum necessary) before finding their
desired product. The study resulted in the discrete probability distribution shown
below. Let X be the number of pages visited before finding their desired
page. Using this distribution, compute the expected value of X.
30.
X-x
0
1
2
3
P(X-x) P(XSX)
PMF
CDF
0.4600
0.4600
0.3200
0.7800
0.1800
0.9600
0.0400 1.0000
29. (
For a normal random variable with the mean of 99 and standard deviation of 3, P(X>101.37) is exactly or closest to:
Also, please draw a rough sketch of the distribution and make sure to identify the shaded region and X-value.
Sample data are collected from an experiment and the sample mean and sample standard deviation of the data are
20.087 and 3.861 respectively. The sample size was 35. Given this information, construct a 90% 2-sided confidence interval
for the mean.
Transcribed Image Text:An online store conducted a study to see how many different web pages their customers visited (above the minimum necessary) before finding their desired product. The study resulted in the discrete probability distribution shown below. Let X be the number of pages visited before finding their desired page. Using this distribution, compute the expected value of X. 30. X-x 0 1 2 3 P(X-x) P(XSX) PMF CDF 0.4600 0.4600 0.3200 0.7800 0.1800 0.9600 0.0400 1.0000 29. ( For a normal random variable with the mean of 99 and standard deviation of 3, P(X>101.37) is exactly or closest to: Also, please draw a rough sketch of the distribution and make sure to identify the shaded region and X-value. Sample data are collected from an experiment and the sample mean and sample standard deviation of the data are 20.087 and 3.861 respectively. The sample size was 35. Given this information, construct a 90% 2-sided confidence interval for the mean.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning