uppose you want to estimate the percentage of tweets on Twitter that are related to COVID-19 in January 2020. It is impossible for you to read all tweets on Twitter so you use a random tweet picker with a raffle method to select 200 tweets from each day in January. Among those tweets selected, only 2% is related to COVID-19.  1 - The population of interest is  a) All tweets on Twitter in January 2020 b) Any tweets that are related to Covid-19 c) The 200 tweets selected  2 - The sample size is a) 200 b) The total number of tweets related to Covid-19 c) The total number of tweets in January 2020 3 - The population parameter we are interested in is a) Total count of tweets about Covid-19 among all tweets in January 2020  b) 2% c) The proportion of tweets about Covid-19 among all tweets in January 2020 4 - This sampling method is called  a) Clustering b) Multi-stage sampling  c) Simple Random Sample

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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uppose you want to estimate the percentage of tweets on Twitter that are related to COVID-19 in January 2020. It is impossible for you to read all tweets on Twitter so you use a random tweet picker with a raffle method to select 200 tweets from each day in January. Among those tweets selected, only 2% is related to COVID-19. 

1 - The population of interest is 

a) All tweets on Twitter in January 2020

b) Any tweets that are related to Covid-19

c) The 200 tweets selected 

2 - The sample size is

a) 200

b) The total number of tweets related to Covid-19

c) The total number of tweets in January 2020

3 - The population parameter we are interested in is

a) Total count of tweets about Covid-19 among all tweets in January 2020 

b) 2%

c) The proportion of tweets about Covid-19 among all tweets in January 2020

4 - This sampling method is called 

a) Clustering

b) Multi-stage sampling 

c) Simple Random Sample

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