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

Frequency distribution, Ask questionadvantage and disadvantage of frequency...

Ask questionadvantage and disadvantage of frequency distribution #Minimum 100 words accepted#

Quantitative research, The research should be Quantitative Research: A m...

The research should be Quantitative Research: A means for testing objective theories by examining the relationship among variables. These variables can be measured and analyzed

Characteristics of data in statistics, Important Characteristics of Data ...

Important Characteristics of Data Center - The representative or average value which indicates where the middle of the data is located.   Variation - the measur

Financial accounting, During October, Alcorn Company had 81,250 of cash rec...

During October, Alcorn Company had 81,250 of cash receipts and 83,688.00 of cash disbursements. The October 31 cash balance was 14,060. Determine how much cash the company had at

Determine ytm price formula, YTM can be determined using the price formula...

YTM can be determined using the price formula of a bond. Part a The present value (price) formula for a zero coupon bond is: PV = F/(1+i) n Plugging in the given inf

How to calculate Median?, Median The median describes the value of the ...

Median The median describes the value of the middle term in data. The data set must be ranked first in increasing order before the middle value is identified. The median separa

Draw a gantt chart, Consider the Kristen Cookie Company case. From the n...

Consider the Kristen Cookie Company case. From the note: Wash&Mix: 6 mins per order (max 3 dozen) Dish up: 2 mins per dozen Set up timer: 1 min per dozen Bake: 9 mins per dozen

Hypothesis the basic short-run and long-run, In reguards to the airlines in...

In reguards to the airlines indusry, provide a minimum of 300 words for each statement. plus atleast 3 academic resources. 1. hypothesis the basic short-run and long-run behavio

Calculate the p-value and test statistic, 1.  This assignment is important...

1.  This assignment is important in providing feedback and helping to establish competency in essential skills. 2.  Answer all the questions. The questions are not of equal weig

T test, Ten students are given coaching for environmental statistics. The s...

Ten students are given coaching for environmental statistics. The score obtained in tests 1 and 5 are given below: Sl No of student 1 2 3 4 5 6 7 8 9 10 Marks in 1st test 50 52 53

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