Constructing and Graphing Binomial Distributions In | StudySoup
Elementary Statistics: Picturing the World | 6th Edition | ISBN: 9780321911216 | Authors: Ron Larson; Betsy Farber

Table of Contents

C

1
Introduction to Statistics

1 and 2
Cumulative Review

1.PAT
1.R
1.1
An Overview of Statistics
1.2
Data Classification
1.3
Data Collection and Experimental Design

2
Descriptive Statistics
2.PAT
2.1
Frequency Distributions and Their Graphs
2.2
More Graphs and Displays
2.3
Measures of Central Tendency
2.4
Measures of Variation
2.5
Measures of Position

3
Probability

3-5
Cumulative Review

3.PAT
3.R
3.T
3.1
Basic Concepts of Probability and Counting
3.2
Conditional Probability and the Multiplication Rule
3.3
The Addition Rule
3.4
Additional Topics in Probability and Counting

4
Discrete Probability Distributions
4.PAT
4.R
4.T
4.1
Probability Distributions
4.2
Binomial Distributions
4.3
More Discrete Probability Distributions

5
Normal Probability Distributions
5.R
5.1
Introduction to Normal Distributions and the Standard Normal Distribution
5.2
Normal Distributions: Finding Probabilities
5.3
Normal Distributions: Finding Values
5.4
Sampling Distributions and the Central Limit Theorem
5.5
Normal Approximations to Binomial Distributions

6
Confidence Intervals

6-8
Cumulative Review

6.1
Confidence Intervals for the Mean (S Known)
6.2
Confidence Intervals for the Mean (S Unknown)
6.3
Confidence Intervals for Population Proportions
6.4
Confidence Intervals for Variance and Standard Deviation

7
Hypothesis Testing with One Sample
7.1
Introduction to Hypothesis Testing
7.2
Hypothesis Testing for the Mean (S Known)
7.3
Hypothesis Testing for the Mean (S Unknown)
7.4
Hypothesis Testing for Proportions
7.5
Hypothesis Testing for Variance and Standard Deviation

8
Hypothesis Testing with Two Samples
8.1
Testing the Difference Between Means (Independent Samples, S1 and S2 Known)
8.2
Testing the Difference Between Means (Independent Samples, S1 and S2 Unknown)
8.3
Testing the Difference Between Means (Dependent Samples)
8.4
Testing the Difference Between Proportions

9
Correlation and Regression

9 and 10
Cumulative Review

9.1
Correlation
9.2
Linear Regression
9.3
Measures of Regression and Prediction Intervals
9.4
Multiple Regression

10
Chi-Square Tests and the F -Distribution
10.1
Goodness-of-Fit Test
10.2
Independence
10.3
Comparing Two Variances
10.4
Analysis of Variance

Textbook Solutions for Elementary Statistics: Picturing the World

Chapter 4.2 Problem 23E

Question

Problem 23E

Constructing and Graphing Binomial Distributions In Exercise, (a) construct a binomial distribution, (b) graph the binomial distribution using a histogram and describe its shape, and (c) identify any values of the random variable x that you would consider unusual. Explain your reasoning.

100th Birthday Sixty-seven percent of adults ages 55 and older want to reach their 100th birthday. You randomly select seven adults ages 55 and older and ask them whether they want to reach their 100th birthday. The random variable represents the number of adults ages 55 and older who want to reach their 100th birthday.

 

Solution

Solution:

Step 1 of 3:

   From the given problem, we have

     

           n = 7, p = 67%

                        = 0.67

     The pmf of a Binomial distribution is

    P(X = x) = ;   x = 0, 1, 2,...., n.

    Where, X represents the number of adults age 55 and older who want to reach their 100th birthday.

a). Here we have to construct a binomial distribution.

      Given, n = 7, p = 0.67  

      Where, is obtained from excel by using the function:

“=Binomdist(x, n, p, false)”.

     That is,

             

x 

P(x)

0

0.0004

1

0.0061

2

0.0369

3

0.1248

4

0.2535

5

0.3088

6

0.209

7

0.0606

           


 

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full solution

Title Elementary Statistics: Picturing the World  6 
Author Ron Larson; Betsy Farber
ISBN 9780321911216

Constructing and Graphing Binomial Distributions In

Chapter 4.2 textbook questions

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