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Critical thinking:Numbers are often assigned to data that are categorical in nature. Consider these number assignments for category items describing electronic ways of expressing personal opinions: 1 = Twitter; 2 = email; 3 = text message; 4 = Facebook; 5 = blog. The above numerical assignments are at ordinal level of measurement.

In a Pew Research Center poll of 1502 randomly selected adults in United States of America, 67% said that global warming is already harming people around the world. The margin error is 2 percentage points. The confidence interval is ranges from 65% to 69%.

Count the letters in each word of this sentence and give the mean. (The numbers of the letters in the words of the sentence are) :    5         3       7       2      4      4     2    4     8         3      4       3      4;    In this case the mean is  = 4.07

Lucy conducted a survey asking some of her friends to specify their favorite type of TV from the following list of choices: documentary; drama; cartoon; reality; sitcom sitcom. Lucy’s observations from the study cannot legitimately apply to adults in Columbus, Ohio. 

Count the letters in each word of this sentence and give the median. (The numbers of the letters in the words of the sentence are) :    5         3       7       2      4      4     2    4     8         3      4       3      4;    In this case the median is  = 3

Count the letters in each word of this sentence and give the mean. (The numbers of the letters in the words of the sentence are) :    5         3       7       2      4      4     2    4     8         3      4       3      4;    In this case the mean is  = 4.08

1.12 In your own words, explain what the word ‘extinction’ means? (2)

4.6 In your own words, write a brief description of what a syllable is. (2)  

2.1 Explain TWO reasons why both Calvin and Hobbes feel that being a tiger is not much fun. (2)

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