B. Complete the grouped frequency distribution table with 10 intervals for the 50-item test result of a class. The scores are as follows: 31 29 19 43 24 23 39 42 32 44 31 40 28 30 41 41 31 39 39 37 33 35 25 32 40 39 41 28 34 45 46 29 49 43 32 30 36 28 38 25 25 27 34 29 40 26 25 31 23 46 Range: Highest Score: Lowest Score: Class Interval 49-51 Tally Frequency (0) 19-21 Total 50
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Step-by-step explanation:
The scores are as follows: 31, 29, 19, 43 3, 24, 23, 39, 42, 32, 44, 31, 40, 28 30, 41 , 41, 31, 39, 39, 37, 33, 35, 25, 32, 40, 39, 41, 28, 34, 45 46, 29, 49, 43, 32, 30, 36, 28 3, 38, 25 , 25, 27, 34, 29 40, .6, 25, 31, 2 , 46 Highest Score:49 Lowest Score: 19 Range : 49 - 19 = 30
Class Tally Marks Frequency
Interval
49-51
46-48
43-45 III I
40-42 11
37-39 111
34-36
31-33
28-30 111 | | | | |
25-27
22-24
19-21
1
2
4
7
6
4
8
8
6
3
1
Total = 50
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