Q9. The following table shows the marks of 40 students in chemistry mock exam, their teacher wants to prepare a frequency distribution table using seven classes, further the teacher wants to know the averag mark for this group & the standard deviation. 13.26 32.43 18.10 58.23 64.00 68.20 35.35 33.92 23.94 18.28 22.05 39.14 31.43 18.51 21.03 5.50 6.96 5.19 28.66 26.29 13.89 25.87 9.84 26.88 16.81 38.65 19.23 21.82 31.58 30.13 42.42 16.51 21.16 32.97 9.84 10.64 29.56 40.69 12.86 13.80 Class Frequency F( F( 5-14 10 9.5 95 902.5 15-24 11 19.5 214.5 380.25 4182.75 25-34 11 29.5 324.5 870.25 9572.75 35-44 5 39.5 197.5 1560.25 7801.25 45-54 49.5 2450.25 55-64 2 59.5 119 3540.25 7080.5 66-74 1 69.5 69.5 4830.25 4830.25 Total 40 1020 13721.75 34370
Q9. The following table shows the marks of 40 students in chemistry mock exam, their teacher wants to prepare a frequency distribution table using seven classes, further the teacher wants to know the averag mark for this group & the standard deviation. 13.26 32.43 18.10 58.23 64.00 68.20 35.35 33.92 23.94 18.28 22.05 39.14 31.43 18.51 21.03 5.50 6.96 5.19 28.66 26.29 13.89 25.87 9.84 26.88 16.81 38.65 19.23 21.82 31.58 30.13 42.42 16.51 21.16 32.97 9.84 10.64 29.56 40.69 12.86 13.80 Class Frequency F( F( 5-14 10 9.5 95 902.5 15-24 11 19.5 214.5 380.25 4182.75 25-34 11 29.5 324.5 870.25 9572.75 35-44 5 39.5 197.5 1560.25 7801.25 45-54 49.5 2450.25 55-64 2 59.5 119 3540.25 7080.5 66-74 1 69.5 69.5 4830.25 4830.25 Total 40 1020 13721.75 34370
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:Q9. The following table shows the marks of 40 students in chemistry mock exam. their teacher wants to
prepare a frequency distribution table using seven classes, further the teacher wants to know the average
mark for this group & the standard deviation.
13.26
32.43
18.10
58.23
64.00
68.20
35.35
33.92
23.94
18.28
22.05
39.14
31.43
18.51
21.03
5.50
6.96
5.19
28.66
26.29
13.89
25.87
9.84
26.88
16.81
38.65
19.23
21.82
31.58
30.13
42.42
16.51
21.16
32.97
9.84
10.64
29.56
40.69
12.86
13.80
Class
Frequency
F(
F(
5-14
10
9.5
95
902.5
15-24
11
19.5
214.5
380.25
4182.75
25-34
11
29.5
324.5
870.25
9572.75
35-44
5
39.5
197.5
1560.25
7801.25
45-54
49.5
2450.25
55-64
59.5
119
3540.25
7080.5
66-74
1
69.5
69.5
4830.25
4830.25
Total
40
1020
13721.75
34370
2.
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