Mathematics, 28.05.2020 03:57, kwoods8054
Due to the popularity of instant messaging and social networking, informal elements such as emoticons (e. g., the symbol ":)" to represent a smile) and abbreviations (e. g., "LOL" for "laughing out loud") have worked their way into teenagers' school writing assignments. A survey interviewed 900 randomly selected teenagers by telephone on their writing habits. Overall, 442 of the teenagers admitted using at least one informal element in school writing assignments. Based on the survey results, construct a 90% confidence interval for the proportion of all teenagers who have used at least one informal element in school writing assignments. Give a practical interpretation of the interval.
Answers: 1
Mathematics, 21.06.2019 19:00, lightning1157blaze
The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels
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Mathematics, 21.06.2019 21:00, mayavue99251
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
Mathematics, 21.06.2019 21:30, justkevin1231
The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values
Answers: 3
Due to the popularity of instant messaging and social networking, informal elements such as emoticon...
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