statistics, 1. A search engine site claims that, on average, one out of five visitors, Basic Statistics

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.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages

statistics, Basic Statistics

Related Discussions:- statistics

Define the z score, A. Describe what a z score is. B. Explain why they c...

Kurtosis, how solve and get kurtosis

Nucleus Composition, The study of radioactive disintegrations indicates the...

Differentiate between sample and population, Ask question #Midifferentiate ...

Joint probability, Two construction contracts are to be randomly assigned t...

Capitalization policy, Capitalization policy The criteria used to decide w...

Incomplete accounts, HOW TO PREPARE INCOMPLETE ACCOUNTS CORRECTLY?

Revenue accounting, Term Project

Job costing order, Diketahui: Biaya Bahan Baku 15.500 Biaya Tenaga Kerja La...

#title.Arithmatic mean., If the mean of first 5 no. is 60 and mean of last ...

Write Your Message!

Featured Services

Online Tutoring

Project Development

Exam Preparation

Course Help

Assignment Help

Popular Subjects

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT