Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 3, Problem 29E

(a)

To determine

To find: the percent of days it actually rain.

(a)

Expert Solution
Check Mark

Answer to Problem 29E

9.3%

Explanation of Solution

Given:

    Rain No rain
    Rain 27 63
    No rain 7 268

Calculation:

Total number of days rained is 34. Total number of days is 365.

Therefore, the percent of day it actually rain is

  NumberofraindaysTotal numberofdays=34365×100=9.3%

Therefore, the percent of actually rained days is 9.3%.

(b)

To determine

To find: the percent of days was rain predicted.

(b)

Expert Solution
Check Mark

Answer to Problem 29E

24.7%

Explanation of Solution

Given:

    Rain No rain
    Rain 27 63
    No rain 7 268

Calculation:

Total numbers of days were rain predicted is 90.

And total number of days is 365.

Therefore, the percent of days was rain predicted is

  Number rain predicteddaysTotal numberofdays=90365×100=24.7%

Therefore, the percent of rain predicted days is 24.7%

(c)

To determine

To find: the percent of the time was the forecast correct.

(c)

Expert Solution
Check Mark

Answer to Problem 29E

80.8%

Explanation of Solution

Given:

    Rain No rain
    Rain 27 63
    No rain 7 268

Calculation:

The rain forecast is correct = 27 times and

No rain forecast is correct =268 times.

Total correct forecast is 27+268=295.

Total number of days is 365.

Therefore, the percent of the time was the forecast correct is

  Number of correct forecastsTotal numberofdays=295365×100=80.8%

Therefore, the required percent correct forecast is 80.8%.

(d)

To determine

To Explain: the about the accurate prediction of the weather forecast and briefly explanation with appropriate graph.

(d)

Expert Solution
Check Mark

Explanation of Solution

Given:

    Rain No rain
    Rain 27 63
    No rain 7 268

Graph:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 3, Problem 29E

  2734×100%=79.4% Actually rain and forecast also predicts the as it is an 734×100%=20.6% actually not rain and forecast predicts the rain. There are 268331×100%=81.0% actually not rain and forecast also predicts the as it is and 63331×100%=19.0% actually rain and forecast predicts no rain.

Knowledge Booster
Background pattern image
Statistics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
The Shape of Data: Distributions: Crash Course Statistics #7; Author: CrashCourse;https://www.youtube.com/watch?v=bPFNxD3Yg6U;License: Standard YouTube License, CC-BY
Shape, Center, and Spread - Module 20.2 (Part 1); Author: Mrmathblog;https://www.youtube.com/watch?v=COaid7O_Gag;License: Standard YouTube License, CC-BY
Shape, Center and Spread; Author: Emily Murdock;https://www.youtube.com/watch?v=_YyW0DSCzpM;License: Standard Youtube License