Topic/Lesson

Calculating Measures of Position

Using the frequency distribution table, compute each given measures of position ar match it with the letter code corresponding to its value Class interval Frequency 30-34 6 25 -29 20-24 19 15- 19 10- 14 5- 9 0 - 4 Q3 PBS D2 P35 Do E. 30.33 M. 28 S. 20.82 L. 17.94 I. 12.83Ungrouped Data Quartile for Ungrouped Data Position of Qk - = (N +1) Decile for Ungrouped Data Position of DK = (N+1) Percentile for Ungrouped Data Position of Pk - 7 (N+1) Grouped Data Quartile KN - CID OK - LB + Decile KN Dk - LB + 10 - CFB fDK Percentile KN Cfb PK = LB + 100 SPKClass Interval Frequency 60-63 56 -59 52 -55 48- 51 10 44-47 40 -43 36 - 39 32 - 35 28 - 31 24 - 27 20 - 231. What is the total frequency? A. 2 B. 50 C. 60 D. 63 2. What is the lower boundary of DA? A. 9 B. 35.5 C. 39.5 D. 43.5 3. The class interval containing Q1 class is A. 20 - 23 B. 32 - 35 C. 36 - 39 D. 40 -43 4. Q3 is equal to A. 30 B. 37.5 C. 47.5 D. 50.5 5. Pgo is equal to A. 55.5 B. 57.5 C. 59.5 D. 90.51. If you wish to divide a class into 10 equal parts, which measure of position is appropriate to use? A. decile B. median C. percentile D. quartile 12 When a distribution is divided into 4 equal parts, each score point that describes a distribution is called a A. decile B. median C. percentile quartile 3. Which of the following is in equal position with the median score? A. 18 quartile B. 3 quartile C. 5th decile D. 90th percentile 4. When a distribution is divided into 100 equal parts, each score point that describes a distribution is called a A. decile B. median C. percentile D. quartile 5. In a 50-item Statistics Test, Anna obtained a score of 42 which is considered as the 8th decile. Which one from the following statements is NOT TRUE? A. Anna scored equal or above 80% of her classmates. B. Anna's score is below the 3d quartile. . Twenty percent (20%) of her classmates scored higher or equal to 42. D. if the passing mark is the 50th percentile, then she passed the test. 6. Which of the following is equal to the 7th decile in terms of position? A. Q3 B. P70 C. P75 D. DS 7. If Q1 = 15 and Q3 = 23, then the interquartile range is A. 7 B. 8 C. 9 D. 10 8. Which of the following is less than the 7:0th percentile in terms of position? A. Median C. 8th decile B. 7th decile D. Upper Quartile 9. If there are 10 numbers in a set of data, the 2nd quartile is the A. 3rd number C. 5th number B. 4 number D. average of 5th and.6th number 10. If the passing score of a 100-item standardized test is 50 and considered as the 60th percentile, which one from the following statements is NOT TRUE? A. 60% of the examiners got a score lower than or equal to 50. B. 40% of the examiners gamered a score of 50 and above. C. Obtaining a score that is in the 5th decile means passing the test. D. 40% of the examiners answered 50 or more questions correctly.Scores of Students Number of Student 19- 20 17 -18 15-15 13- 14 11 - 12 1. How many students took the First Mastery Test? A. 15 B. 20 C. 25 D. 30 2. How many students belongs to Q2? A. 3 B. 5 C. 7 D. 8 3. Calculate Pso A. 16.7 B.17.7 C. 18.7 D. 19.7 4. If Da = 14.7, this means that A. 30% of the students who took the test got the score of higher than 15 B. 30% of the students who took the test got the score of 15 C. 30% of the students who took the test got the score of less than or equal to 15 D. 30% of the students who took the test got the score of greater than or equal to 15 5. Calculate Pys and interpret its result