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

Quota sampling, uses in marketing

uses in marketing

Determine the probability - probability example, 1. This question has multi...

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

Magnet, Why Magnet show north south pole

Why Magnet show north south pole

Sampling, what are the methods of sampling

what are the methods of sampling

Determine the variance, A gambling machines works in the following way. The...

A gambling machines works in the following way. The player inserts a penny into 1 of 5 slots which are colored Blue, Red, Orange, Yellow & Green corresponding to 5 colored light bu

Determine the cutoff score to indicate a score, What would be the cutoff sc...

What would be the cutoff score to indicate a score that is in the top 15% of the scores on a test with a mean of 100 and a standard deviation of 15?

What is sample population, Q. What is Sample Population? Choosing a sam...

Q. What is Sample Population? Choosing a sample population is one of the most important factors in gathering statistical data because all of the claims will be based on the sam

Simulation for structural equation modeling, I want to simulate observed va...

I want to simulate observed variables for structural equation modeling. In real data it is assumed that observed variables are not error free variables, so should i also simulate e

Circular motion, Explain why large lorries carrying heavy loads may not suc...

Explain why large lorries carrying heavy loads may not succed to go through a curve safely

Historigram, difference between historigram and histogram

difference between historigram and histogram

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