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For problems 23 and 24, refer to the following: A chemical engineer wanting to study the evaporation rates of water from brine evaporation beds obtained the following data on the number of centimeters of evaporation in each of 19 days in July: 8.6 10.5 9.9 9.8 9.4 9.1 11.5 8.0 10.4 10.2 11.1 8.3 8.7 8.4 11.9 9.9 9.1 8.3 10.7 23. How many observations fall above the 7 decile? (Use the manual method.) A. 2 B. 3 C. 4 D. 5 24. What is the value of the first quartile? (Use the manual method.) B. 8.6 C. 10.4 A. 8.3 D. 11.1

For problems 23 and 24, refer to the following: A chemical engineer wanting to study the evaporation rates of water from brine evaporation beds obtained the following data on the number of centimeters of evaporation in each of 19 days in July: 8.6 10.5 9.9 9.8 9.4 9.1 11.5 8.0 10.4 10.2 11.1 8.3 8.7 8.4 11.9 9.9 9.1 8.3 10.7 23. How many observations fall above the 7 decile? (Use the manual method.) A. 2 B. 3 C. 4 D. 5 24. What is the value of the first quartile? (Use the manual method.) B. 8.6 C. 10.4 A. 8.3 D. 11.1

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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For problems 23 and 24, refer to the following: A chemical engineer wanting to study the evaporation rates of water from brine evaporation beds obtained the following data on the number of centimeters of evaporation in each of 19 days in July: 8.6 9.9 9.8 9.4 9.1 11.5 8.0 10.4 10.2 11.1 8.3 8.7 8.4 11.9 9.9 9.1 23. How many observations fall above the 7 decile? (Use the manual method.) 10.5 8.3 10.7 A. 2 В. 3 С.4 D. 5 24. What is the value of the first quartile? (Use the manual method.) B. 8.6 C. 10.4 D. 11.1 A. 8.3 25. It is a user interface that adds a more user-friendly and streamlined working environment C. RStudio A. Rtools B. Console pane D. Script pane 26. This is a tab in RStudio that shows all objects that are loaded or generated during the current session. C. History D. Viewer A. Files B. Environment 27. Consider a data set of 11 distinct measurements with mean equal to A and median equal to B. If the highest value was decreased to a value smaller than the median B, how would the mean and median be affected? A. The mean and median will both decrease. B. The mean and median will not change. C. The mean will not change and the median will decrease. D. The mean will decrease and the median will not change. 28. Company A pays its 50 employees a mean monthly salary of Php9500; a second company B pays its 62 employees a mean monthly salary of Php4500; and a third company C pays its 85 employees an average monthly salary of Php8000. What is the overall average monthly salary of the employees for all the three companies? A. Php7000 B. Php7279 C. Php7333 D. Php7500 For questions 29 to 30, refer to the following: To evaluate the cllective performance of two Graduate classes, the professor gave a 100 item written test to the two classes. The stem-and-leaf display below shows the scores of the students in the test. Class X Class Y 0 5 4 4 5 1 2 3 3 5 3 9 4 5 6 8 6. 7 9 3 7 9. 3 4 6. 8 9 8 7. 8. 9 4 1 9 3 5 n23 o22
Transcribed Image Text:For problems 23 and 24, refer to the following: A chemical engineer wanting to study the evaporation rates of water from brine evaporation beds obtained the following data on the number of centimeters of evaporation in each of 19 days in July: 8.6 9.9 9.8 9.4 9.1 11.5 8.0 10.4 10.2 11.1 8.3 8.7 8.4 11.9 9.9 9.1 23. How many observations fall above the 7 decile? (Use the manual method.) 10.5 8.3 10.7 A. 2 В. 3 С.4 D. 5 24. What is the value of the first quartile? (Use the manual method.) B. 8.6 C. 10.4 D. 11.1 A. 8.3 25. It is a user interface that adds a more user-friendly and streamlined working environment C. RStudio A. Rtools B. Console pane D. Script pane 26. This is a tab in RStudio that shows all objects that are loaded or generated during the current session. C. History D. Viewer A. Files B. Environment 27. Consider a data set of 11 distinct measurements with mean equal to A and median equal to B. If the highest value was decreased to a value smaller than the median B, how would the mean and median be affected? A. The mean and median will both decrease. B. The mean and median will not change. C. The mean will not change and the median will decrease. D. The mean will decrease and the median will not change. 28. Company A pays its 50 employees a mean monthly salary of Php9500; a second company B pays its 62 employees a mean monthly salary of Php4500; and a third company C pays its 85 employees an average monthly salary of Php8000. What is the overall average monthly salary of the employees for all the three companies? A. Php7000 B. Php7279 C. Php7333 D. Php7500 For questions 29 to 30, refer to the following: To evaluate the cllective performance of two Graduate classes, the professor gave a 100 item written test to the two classes. The stem-and-leaf display below shows the scores of the students in the test. Class X Class Y 0 5 4 4 5 1 2 3 3 5 3 9 4 5 6 8 6. 7 9 3 7 9. 3 4 6. 8 9 8 7. 8. 9 4 1 9 3 5 n23 o22
29. Which of the following statements is NOT TRUE based on the given stem-and-leaf displaya A. There are 22 students in Class X and 18 students in Class Y who scored higher than 60. B. The minimum and maximum scores in Class X are 40 and 95, respectively, while the minimum and maximum scores for Class Y are 41 and 91, respectively. C. The mean score in Class X is lower than the mean score of all students in the two classes. D. The median score in Class X is higher than the median score of all students in the two classes. 30. The median score for Class X and Class Y, respectively, are: B. 70 and 66 C. 70.5 and 65.5 A. 70 and 65 D. 71 and 66 For problems 31 to 33, refer to the following: Real wage is a wage deflated by the current consumer price index. It gives information on how much current wage compares to the wage of given base year period. Real wage is obtained by dividing the nominal wage by the current Consumer Price Index (CPI) of a giver month multiplied by 100. Table 1 below presents the real wage and nominal wage of non agriculture workers in the Philippines as of December 2019 by region. Reglon Real Wage Nominal Wage 537.00 CPI NCR 119.8 448.25 CAR 350.00 120.4 290.70 340,00 120.9 281.22 360.00 122.8 293.16 II 400.00 120.7 331.40 IV-A 400.00 120.4 332.23 IV-B 320.00 124.1 257.86 V 310.00 123.9 250.20 VI 395.00 123.2 320.62 VII 386.00 125.2 308.31 VII 315.00 125.7 250.60 IX 316.00 126.1 250.59 365.00 125.7 290.37 XI 396.00 122.3 323.79 XII 311.00 125.1 248.60 CARAGA 320.00 121.2 264.03 ARMM 280.00 127.9 218.92 Table 1. Nominal and Real Wages of Non-Agricultural Workers by Region.
Transcribed Image Text:29. Which of the following statements is NOT TRUE based on the given stem-and-leaf displaya A. There are 22 students in Class X and 18 students in Class Y who scored higher than 60. B. The minimum and maximum scores in Class X are 40 and 95, respectively, while the minimum and maximum scores for Class Y are 41 and 91, respectively. C. The mean score in Class X is lower than the mean score of all students in the two classes. D. The median score in Class X is higher than the median score of all students in the two classes. 30. The median score for Class X and Class Y, respectively, are: B. 70 and 66 C. 70.5 and 65.5 A. 70 and 65 D. 71 and 66 For problems 31 to 33, refer to the following: Real wage is a wage deflated by the current consumer price index. It gives information on how much current wage compares to the wage of given base year period. Real wage is obtained by dividing the nominal wage by the current Consumer Price Index (CPI) of a giver month multiplied by 100. Table 1 below presents the real wage and nominal wage of non agriculture workers in the Philippines as of December 2019 by region. Reglon Real Wage Nominal Wage 537.00 CPI NCR 119.8 448.25 CAR 350.00 120.4 290.70 340,00 120.9 281.22 360.00 122.8 293.16 II 400.00 120.7 331.40 IV-A 400.00 120.4 332.23 IV-B 320.00 124.1 257.86 V 310.00 123.9 250.20 VI 395.00 123.2 320.62 VII 386.00 125.2 308.31 VII 315.00 125.7 250.60 IX 316.00 126.1 250.59 365.00 125.7 290.37 XI 396.00 122.3 323.79 XII 311.00 125.1 248.60 CARAGA 320.00 121.2 264.03 ARMM 280.00 127.9 218.92 Table 1. Nominal and Real Wages of Non-Agricultural Workers by Region.
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