Given the raw score of 30 students in Science as of the first term as follows:  51.6 53.2 53.9 56.8 60.6 46.7 46.8 48.1 48.7 50.2 29.9 32 32.3 32.3 37 41.1 41.2 42.5 43.9 51.2 51.2 51.4 40.2 40.6 23.3 29.5 45.8 50.4 50.9 46.1 Make a frequency distribution table with 8 classes then answer the following questions: a. What is the sum of the product of the frequency and the squared deviation from the midpoint? # b. What is the standard deviation of the grouped data? c. What is the midpoint of the 4th class interval? d. What is summation of the product of the frequency and midpoint?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Given the raw score of 30 students in Science as of the first term as follows: 
51.6
53.2
53.9
56.8
60.6
46.7
46.8
48.1
48.7
50.2
29.9
32
32.3
32.3
37
41.1
41.2
42.5
43.9
51.2
51.2
51.4
40.2
40.6
23.3
29.5
45.8
50.4
50.9
46.1

Make a frequency distribution table with 8 classes then answer the following questions:

a. What is the sum of the product of the frequency and the squared deviation from the midpoint? #

b. What is the standard deviation of the grouped data?

c. What is the midpoint of the 4th class interval?

d. What is summation of the product of the frequency and midpoint? 

 

 

 

 

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