Math
StatisticsSTATISTICS F/BUSINESS+ECONOMICS-TEXTAccording to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction. That is, these are tweets that are not replied to or retweeted ( Sysomos website, January 5, 2015). Suppose we randomly select 100 tweets. a. What is the expected number of these tweets with no reaction? b. what are the variance and standard deviation for the number of these tweets with no reaction?
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According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction. That is, these are tweets that are not replied to or retweeted ( Sysomos website, January 5, 2015). Suppose we randomly select 100 tweets. a. What is the expected number of these tweets with no reaction? b. what are the variance and standard deviation for the number of these tweets with no reaction?

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STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884
BuyFind

STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

Solutions

Chapter
Section
Problem 31E
Problem 32E
Problem 33E
Problem 34E
Problem 35E
Problem 36E
Problem 37E
Problem 38E
Problem 39E
Problem 40E
Problem 41E
Problem 42E
Problem 43E
Chapter 5.5, Problem 43E
Textbook Problem

According to a 2010 study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction. That is, these are tweets that are not replied to or retweeted (Sysomos website, January 5, 2015). Suppose we randomly select 100 tweets.

  1. a. What is the expected number of these tweets with no reaction?
  2. b. what are the variance and standard deviation for the number of these tweets with no reaction?

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Chapter 5.5,
Problem 42E
Chapter 5.6,
Problem 44E

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Chapter 5 Solutions

STATISTICS F/BUSINESS+ECONOMICS-TEXT
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