User Account

All Pages

statistics, Basic Statistics

Assignment Help:
1. A search engine site claims that, on average, one out of five visitors clicks on an ad.
(a) If 8 users visit the site, what is the probability that at least three click on an ad?
(b) If 8 users visit the site, what is the probability that less than two of them click on an ad?
(c) If 800 users visit the site, would the probability that less than 200 click on an ad be higher or lower than the answer found in part (b)? Write a few sentences explaining your answer- computations are not required (or desired)
(d) Suppose 90 users visit the site during a particular minute, use the normal approximation to estimate the probability that more than 25 of them click on an ad.
(e) If 900 users visited the site, would the probability that more than 250 of them click on an ad be higher or lower than the answer found in part (d)? Write a few sentences explaining your answer- computations are not required (or desired)

2. Suppose that, overall, 5% of all tax returns are audited by the IRS.
(a) If an accountant has 7 clients for whom she prepared tax returns, what is the probability that less than 3 will be audited?
(b) If the accountant has 30 clients, what is the probability that at least one is audited?
(c) Suppose the accountant prepares 500 returns, use the normal approximation to estimate the probability that more than 20 of the returns are audited.

Related Discussions:- statistics

compare the quality of the different estimations, To illustrate the import...

To illustrate the importance of model selection. We will use only the first four observations to estimate the function f such that ini t. h = f(h. d) for two different models.

Compute three protected tests , compute three protected t tests to compar...

compute three protected t tests to compare all possible pairs of means.  Also, for α = .05, what is the value of LSD ? Which pairs are significantly different from one another,

First quetion, what is accounting ?

what is accounting ?

Number of faults to line length, A study on the occurrence of line faults i...

A study on the occurrence of line faults in an electricity supply network was carried out over a two-year period.  Data was collected from six regions on the number of faults per y

PROBABILITY & STATISTICS I, Design an investigation that details the follow...

Design an investigation that details the following six components: Note: If one or more of the following components do not apply to your investigation, explain why each does n

Regression, y=c+1075x, when x was 2, and y was 239, given that y intercept ...

y=c+1075x, when x was 2, and y was 239, given that y intercept was 11. Calculate the residual

- measure of central tendency, #advantages and disadvantages

#advantages and disadvantages

Doppler effect project, what materials and procedure to do im lost

what materials and procedure to do im lost

Cost accounting, Assignment on objective of cost accounting briefly discuss...

Assignment on objective of cost accounting briefly discuss.

Journalizing confusing transaction, How would you journalize this transacti...

How would you journalize this transaction? Purchased used truck for $6,240, paying $3,120 cash and the balance on account.

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd