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

Accounting equation, goods returned by a customer Rs 2000 costing Rs 1900

goods returned by a customer Rs 2000 costing Rs 1900

X2 test uses, The  χ 2  test is one of the most popular statistical infe...

The  χ 2  test is one of the most popular statistical inference procedures today. It is applicable to a very large number of problems in practice which can be summed up under th

Role of accountant, What are the roles of accountant, let me know the caree...

What are the roles of accountant, let me know the career opportunity in accounting subject?

Applying missing data, For this assignment, you will have to review each co...

For this assignment, you will have to review each column and make a decision for how to adjust for the missing data. After you correct for missing data in each column, please des

Pie diagram, A survey was conducted among the residents of Pune City, its s...

A survey was conducted among the residents of Pune City, its suburbs and the Pune Cantonment area. The following three pie diagrams show their respective preferences for living in

Determine the probability - standard deviation & mean , 1. This question ha...

1. This question has multiple parts. For a distribution of scores with = 82 and standard deviation = 2.5, find the following: (Don't forget to sketch the normal curve to help

I want expert opinion, hi i just want to knw my husband done b.com n doing ...

hi i just want to knw my husband done b.com n doing job as a accountant in private firm can u suggest me it is better for my husband to do m.ba or either some professional course

Parametric and non-parametric stats tests, What is the difference between p...

What is the difference between parametric and non-parametric stats tests? What is the difference between parametric and non-parametric stats tests? Different kinds or levels of d

Simple data analysis&comparison, Progect Guid: PROJECT 1: SIMPLE DATA ANA...

Progect Guid: PROJECT 1: SIMPLE DATA ANALYSIS & COMPARISON REPORT GUIDELINES This document contains general guidelines for the preparation of the Project Report I. Please note,

Write Your Message!

Captcha
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!

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