/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 76 76. Rhubarb Suppose you purchase... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Q. 76 (page 404)

76. Rhubarb Suppose you purchase a bundle of 10bare-root rhubarb plants. The sales clerk tells you that on average you can expect 5%of the plants to die before producing any rhubarb. Assume that the bundle is a random sample of plants. Let Y= the number of plants that die before producing any rhubarb. Use the binomial probability formula to find
P(Y=1). Interpret this result in context.

Short Answer

Expert verified

The chance of getting 1out of 10plants that die before producing any rhubarb is 31.51%.

Step by step solution

01

Given information

An average of 5%of the plants to die before producing any rhubarb. Let Y=the number of plants that die before producing any rhubarb. And to find the value of P(Y=1).

02

Explanation

Given:n=10p=0.05

The Binomial Probability:

P(X=k)=nk脳pk脳(1鈭�p)n鈭�kP(1)=101脳(0.05)1脳(0.95)10鈭�1鈮�0.3151

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Chess and reading (4.3) If the study found a statistically signi铿乧ant improvement in reading scores, could you conclude that playing chess causes an increase in reading skills? Justify your answer

49. Checking independence In which of the following games of chance would you be willing to assume independence of Xandlocalid="1649903939419" Y in making a probability model? Explain your answer in each case.
(a) In blackjack, you are dealt two cards and examine the total points localid="1649903945891" Xon the cards (face cards count localid="1649903950298" 10points). You can choose to be dealt another card and compete based on the total pointslocalid="1649903956461" Y on all three cards.
(b) In craps, the betting is based on successive rolls of two dice. localid="1649903966379" Xis the sum of the faces on the first roll, and localid="1649903971075" Yis the sum of the faces on the next roll.

Checking for survey errors One way of checking the effect of undercoverage, nonresponse, and other sources of error in a sample survey is to compare the sample with known facts about the population. About 12% of American adults identify themselves as black. Suppose we take an SRS of 1500American adults and let Xbe the number of blacks in the sample.

(a) Show that Xis approximately a binomial random variable.

(b) Check the conditions for using a Normal approximation in this setting.

(c) Use the Normal approximation to 铿乶d the probability that the sample will contain between 165and 195blacks. Show your work.

Ana is a dedicated Skee Ballplayer (see photo) who always rolls for the 50-point slot. The probability distribution of Ana's score Xon a single roll of the ball is shown below. You can check that 渭X=23.8and 蟽X=12.63.

(a) A player receives one ticket from the game for every 10points scored. Make a graph of the probability distribution for the random variable T=number of tickets Ana gets on a randomly selected throw. Describe its shape.

(b) Find and interpret 渭T.

(c) Compute and interpret 蟽T.

To introduce her class to binomial distributions, Mrs. Desai gives a 10-item, multiple-choice quiz. The catch is, that students must simply guess an answer (A through E) for each question. Mrs. Desai uses her computer's random number generator to produce the answer key so that each possible answer has an equal chance to be chosen. Patti is one of the students in this class.

Let X=the number of Patti's correct guesses.

To get a passing score on the quiz, a student must guess correctly at least 6times. Would you be surprised if Patti earned a passing score? Compute an appropriate probability to support your answer.
See all solutions

Recommended explanations on Math Textbooks

Logic and Functions

Read Explanation

Mechanics Maths

Read Explanation

Discrete Mathematics

Read Explanation

Statistics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Geometry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.