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Lower boundaries (LB) 45.5 40.5 35.5 30.5 25.5 20.5 15.5 Number of Frequency (f) minutes 46-50 4 41-45 9 36-40 14 31-35 10 26-30 8 21-25 3 16-20 2 i = 5 N=50 16. What is the kth class of D8? A. 37 B. 38 C. 39 17. Find the class interval for P65. A. 26-30 B. 31-35 C. 36-40 18. How many students belong to the upper quartile? A. at most 13 B. at most 10 C. at most 9 19. Find P70. A. 35.79 B. 36.79 C. 38.79 20. Find the percentile rank of 36. A. 46% B. 48% C. 50% Less than cumulative frequency (< cf) 50 46 37 23 13 5 2 D. 40 D. 41-45 D. at most 4 D. 39.79 D. 52%

Lower boundaries (LB) 45.5 40.5 35.5 30.5 25.5 20.5 15.5 Number of Frequency (f) minutes 46-50 4 41-45 9 36-40 14 31-35 10 26-30 8 21-25 3 16-20 2 i = 5 N=50 16. What is the kth class of D8? A. 37 B. 38 C. 39 17. Find the class interval for P65. A. 26-30 B. 31-35 C. 36-40 18. How many students belong to the upper quartile? A. at most 13 B. at most 10 C. at most 9 19. Find P70. A. 35.79 B. 36.79 C. 38.79 20. Find the percentile rank of 36. A. 46% B. 48% C. 50% Less than cumulative frequency (< cf) 50 46 37 23 13 5 2 D. 40 D. 41-45 D. at most 4 D. 39.79 D. 52%

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 78E
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Lower boundaries (LB) 45.5 40.5 35.5 30.5 25.5 20.5 15.5 Number of Frequency (f) minutes 46-50 4 41-45 9 36-40 14 31-35 10 26-30 8 21-25 3 16-20 2 i = 5 N=50 16. What is the kth class of D8? A. 37 B. 38 C. 39 17. Find the class interval for P65. A. 26-30 B. 31-35 C. 36-40 18. How many students belong to the upper quartile? A. at most 13 B. at most 10 C. at most 9 19. Find P70. A. 35.79 B. 36.79 C. 38.79 20. Find the percentile rank of 36. A. 46% B. 48% C. 50% Less than cumulative frequency (< cf) 50 46 37 23 13 5 2 D. 40 D. 41-45 D. at most 4 D. 39.79 D. 52%
Transcribed Image Text:Lower boundaries (LB) 45.5 40.5 35.5 30.5 25.5 20.5 15.5 Number of Frequency (f) minutes 46-50 4 41-45 9 36-40 14 31-35 10 26-30 8 21-25 3 16-20 2 i = 5 N=50 16. What is the kth class of D8? A. 37 B. 38 C. 39 17. Find the class interval for P65. A. 26-30 B. 31-35 C. 36-40 18. How many students belong to the upper quartile? A. at most 13 B. at most 10 C. at most 9 19. Find P70. A. 35.79 B. 36.79 C. 38.79 20. Find the percentile rank of 36. A. 46% B. 48% C. 50% Less than cumulative frequency (< cf) 50 46 37 23 13 5 2 D. 40 D. 41-45 D. at most 4 D. 39.79 D. 52%
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