PERCENTILE RANK OF THE SCORE “3"? (score- LRLY interval size within interval) |(100) cf below interval+ Percentile = Real limits Score f cf Percentile 5.5 - 6.5 1 20 4.5 - 5.5 19 3.5 - 4.5 4 19 2.5 - 3.5 3 3 17 1.5 - 2.5 2 10 14 .5 - 1.5 1 4 4 Interval size is: URL – LRL = 3.5 - 2.5 = 1 OR the number of scores groups in each interval (line) Percentile Rank of "3" calculation: Cf below interval=cumulative frequency below interval 3= 4+10=14 • Score=3 LRL=Lower Real Limit = starting number of the real limit: 2.5 Interval size= the number of scores groups in each interval (line), OR Upper real limit -lower real limit =3.5-2.5= 1 • f within interval= frequency within interval=frequency of the score=3 N=total number of data=total of frequency=20 O NM
PERCENTILE RANK OF THE SCORE “3"? (score- LRLY interval size within interval) |(100) cf below interval+ Percentile = Real limits Score f cf Percentile 5.5 - 6.5 1 20 4.5 - 5.5 19 3.5 - 4.5 4 19 2.5 - 3.5 3 3 17 1.5 - 2.5 2 10 14 .5 - 1.5 1 4 4 Interval size is: URL – LRL = 3.5 - 2.5 = 1 OR the number of scores groups in each interval (line) Percentile Rank of "3" calculation: Cf below interval=cumulative frequency below interval 3= 4+10=14 • Score=3 LRL=Lower Real Limit = starting number of the real limit: 2.5 Interval size= the number of scores groups in each interval (line), OR Upper real limit -lower real limit =3.5-2.5= 1 • f within interval= frequency within interval=frequency of the score=3 N=total number of data=total of frequency=20 O NM
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:PERCENTILE RANK OF THE SCORE “3"?
(score- LRL
interval size)
(f within interval)
|(100)
cf below interval+
Percentile =
Real limits
Score
f
cf
Percentile
5.5 ~ 6.5
1
20
4.5 ~ 5.5
5
19
3.5 ~ 4.5
4
2
19
2.5 - 3.5
3
3
17
1.5 ~ 2.5
10
14
.5 ~ 1.5
4
4
Interval size is: URL – LRL = 3.5 - 2.5 = 1
OR the number of scores groups in each interval (line)
Percentile Rank of "3" calculation:
• Cf below interval=cumulative frequency below interval 3= 4+10=14
• Score=3
• LRL=Lower Real Limit = starting number of the real limit: 2.5
• Interval size= the number of scores groups in each interval (line), OR
Upper real limit -lower real limit =3.5-2.5= 1
• f within interval= frequency within interval=frequency of the score=3
N=total number of data=total of frequency=20
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