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Recursos para tareas sobre Etiopía

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Preguntas

Ethiopia
What is the general form of the cosine function graph and how does the amplitude affect its appearance?
Trigonometría Jan 22, 2025
2. If the points \( (3, k),(k, 1) \) and \( (6,-1) \) are collinear, then determine the value(s) of k .
Geometría Jan 22, 2025
10. Two neighbors work at the same place. One travels to work by bus, the other cycles to work. The times taken (in minutes) by each transport to get to work on a sample of 8 days were given as follows: ■ Bus \( 33,28,40,32,41,32,38,42 \) \( \begin{array}{l}\text { Cyclist } \\ 26,33,27,31,31,30,28,24 \\ \text { Required: Calculate the mean and } \\ \text { standard deviation for each set of times } \\ \text { and use them to compare the travel } \\ \text { times for the two commuters }\end{array} \)
Estadísticas Jan 22, 2025
9. At the end of a performance evaluation period, the production manager found that 5 of the 50 workers completed work late, 6 of the 50 workers assembled a defective product, and 2 of the 50 workers both completed work late and assembled a defective product. Required: A. What is the probability of late performers and defective product? B. What is the probability of late performers or defective product?
Probability Jan 22, 2025
8. Given the following data, (A) Find the median, quartiles and semi-interquartile range, (B) Find the 8th deciles and 85 th percentiles. \( 1976,2162,1502,1782,1523,2033,1564,1320,1951 \), 1714,1841 \( 1648,1345,1837,1718,2047,1954,2000,1479,2571 \), 1739,1781
Estadísticas Jan 22, 2025
8. Given the following data, (A) Find the median, quartiles and semi-interquartile range, (B) Find the 8th deciles and 85th percentiles. \( 1976,2162,1502,1782,1523,2033,1564,1320,1951 \), 1714,1841 \( 1648,1345,1837,1718,2047,1954,2000,1479,2571 \), 1739,1781
Estadísticas Jan 22, 2025
7. A survey asked 2082 adults if they owned a home. A total of 1249 survey respondents answered Yes. Of the 450 respondents in the \( 18-34 \) age groups, 117 responded Yes. Required: A. What is the probability that a respondent to the poll owned a home? B. What is the probability that a respondent in the \( 18-34 \) age group owned a home? C. What is the probability that a respondent to the poll did not own a home? D. What is the probability that a respondent in the \( 18-34 \) age group did not own a home?
Probability Jan 22, 2025
4. Consider a sample with data values of \( 27,25,20,15,30 \), 34,28 , and 25 . Using the given data set, perform the following: A. Calculate the mean and the median for the given data set B. Identify the mode and the range for the given observation C. Compute the 2 nd, quartile, 6 th deciles and 20 th percentiles D. Compute the variance and standard deviation for the data set
Estadísticas Jan 22, 2025
4. Consider a sample with data values of \( 27,25,20,15,30 \), 34,28 , and 25 . Using the given data set, perform the following: A. Calculate the mean and the median for the given data set B. Identify the mode and the range for the given observation C. Compute the 2 nd, quartile, 6 th deciles and 20th percentiles D. Compute the variance and standard deviation for the data set
Estadísticas Jan 22, 2025
\[ \text{Find } 2011^2 - 2010^2 \text{?} \]
Álgebra Jan 22, 2025
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