User Account

All Pages

Find the standard deviation of the discount x

Assignment Help Basic Statistics
Reference no: EM132142306

On Valentine's Day the Quiet Nook restaurant offers a Lucky Lovers Special that could save couples money on their romantic dinners. When the waiter brings the check he also brings a scratch-off ticket that the couple scrapes to reveal a hidden number; call this number X. The value of the number X is the dollar amount that will be subtracted from their dinner bill. The possible values of the scratch-off number X are shown in the table below. The table also shows the probability distribution of the values of X.

Discount Value X 1 10 19 25 29 Probability .25 .30 .25 .10 .10

Question 2. Find the standard deviation of the discount X.(Use 2 decimal places.)

For the past several weeks the restaurant has also been distributing coupons worth $5 off any dinner for two. The coupon can be used in addition to the discount X from the scratch-off ticket. If every couple dining there on Valentine's Day also brings a $5 coupon, what are the expected value and standard deviation of the total discount the couples receive?

Question 4. Standard deviation of total discount

When two couples dine together on a single check, the restaurant doubles the scratch-off discount X; so the discount values are 2X, that is, twice the amounts shown in the above table. (the $5 discount coupon cannot be used).

Question 6. What is the standard deviation of the discount for 2 couples?

Reference no: EM132142306

Questions Cloud

Analyse information security vulnerabilities and threats : CIS5205 Management of Information Security - The University of Southern Queensland - Analyse information security vulnerabilities and threats and determine
What is the probability that one is a mathematician : A comitttee of 3 persons is selected at random from a group of 5 mathematicians and 8 physicists. What is the probability that one is a mathematician
Company claim using the p-value : At a=0.02, what type of test is this and can you support the company's claim using the p-value?
What is the probability that the first ball is red : What is the probability that the first ball is red and the second ball is also red? Express the probability in fraction format.
Find the standard deviation of the discount x : For the past several weeks the restaurant has also been distributing coupons worth $5 off any dinner for two. The coupon can be used in addition to the discount
What is the mean of y and variance of y : An automobile accidents occur over a 72 hour holiday period are like events in a poisson process with = 10 per hour. Let Y be the time for the first accident.
Calculate the expected value and variance of distribution : 1) Approximately 20% of corporate workforce are not happy with their immediate bosses. Suppose 10 workers working in corporates are randomly selected.
Develop high level object-oriented class specifications : Develop high level object-oriented class specifications - The assignment is to design the classes that are necessary for the administration of a horse race
Confidence interval for the true proportion : We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education and the schools is one of the top issues

Reviews

Write a Review

Basic Statistics Questions & Answers

  Question the mean of a normal probability distribution is

question the mean of a normal probability distribution is 60 the standard deviation is 5.a what percent of the

  Define that the weight losses were skewed to the right

Explain whether it is most likely that the weight losses were skewed to the right, skewed to the left, or symmetric.

  Find the probability that neither product succeeds

Your new firm is introducing two products, a bicycle trailer, and a baby carriage for jogging. Your subjective probabilities of success for these products.

  Find exact probability distribution for sample variance

Suppose two American Airlines cross-country flights are randomly selected. Find the exact probability distribution for the sample variance, S2.

  Information about students t test

The mean interview time for a standard questionnaire of 31.3 minutes was considered to be excessive so the schedule was revised, yielding a mean interview time for a sample of 40 subjects of 21.3 minutes

  Confi dence interval to test your null hypothesis

Enter the data into R, and calculate the means for placebo and epinephrine. Find a 95% confi dence interval for the mean diff erence in cholesterol levels between the placebo and epinephrine. Use the confi dence interval to test your null hypothes..

  The regression equation

The regression equation. The equation of a least-squares regression line is y = 12 + 6x.

  Lack of rain adversely affected the soybean yield

Biology and Environmental Science The historical mean yield of soybeans from farms in Indiana is 31.9 bushels per acre.

  What statistically significant coefficients imply time

Could we estimate the effect of usd on prod with FE if the value of every country's currency (relative to the US dollar) remained the same over the sample time period? Why or why not? Please answer in 2-3 sentences.

  Test using two sample independent z test

At 95% level of confidence, can we conclude that the babies using the Gibbs product gained less weight?

  Regression coefficient of an indicator variable

What kind of variable should you create in order to include information about a categorical variable among your X variables?

  Why do isomers have different boiling points

Why is there an increase in boiling point with larger alkaline molecules? Why do isomers have different boiling points?

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: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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