The following data represent the scores (in words per minute) of 25 computer encoders on a speed test. Complete the table and answer the questions below. Scores f Xm fXm

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The following data represent the scores (in words per
minute) of 25 computer encoders on a speed test.
Complete the table and answer the questions below.
Scores
f
Xm
fXm
<cf
54 - 58
2
59 - 63
64 - 68
8
69 - 73
1
74 - 78
79 - 83
84 - 88
1
From the frequency table above, answer the following:
1. Median class
2. Lower boundary of the median class
3. Midpoint of the median class
+ 4. Upper limit of the median class
5. The modal class
6. Lower limit of the modal class
+ 7. Classmark of the median class
8. Lower limit of the median class
9. Number of computer encoders with scores
greater than 63
10. Classmark of the modal class
11. Percentage of computer encoders with scores
less than 69
Transcribed Image Text:The following data represent the scores (in words per minute) of 25 computer encoders on a speed test. Complete the table and answer the questions below. Scores f Xm fXm <cf 54 - 58 2 59 - 63 64 - 68 8 69 - 73 1 74 - 78 79 - 83 84 - 88 1 From the frequency table above, answer the following: 1. Median class 2. Lower boundary of the median class 3. Midpoint of the median class + 4. Upper limit of the median class 5. The modal class 6. Lower limit of the modal class + 7. Classmark of the median class 8. Lower limit of the median class 9. Number of computer encoders with scores greater than 63 10. Classmark of the modal class 11. Percentage of computer encoders with scores less than 69
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