(b) In a class of 15 students, the coursework marks for all the students are as follows: 15 47 34 46 50 55 21 35 48 51 33 57 44 56 59 (i) Calculate the mean coursework for all 15 students. (ii) 59, 47. Calculate the sample mean and sampling error for the selected students. 10 students are selected, which their coursework is 57, 55, 21, 46, 50, 34, 15, 33,

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(b)
In a class of 15 students, the coursework marks for all the students are as follows:
15
47
34
46
50
55
21
35
48
51
33
57
44
56
59
(i)
Calculate the mean coursework for all 15 students.
(11)
10 students are selected, which their coursework is 57, 55, 21, 46, 50, 34, 15, 33,
59, 47. Calculate the sample mean and sampling error for the selected students.
Transcribed Image Text:(b) In a class of 15 students, the coursework marks for all the students are as follows: 15 47 34 46 50 55 21 35 48 51 33 57 44 56 59 (i) Calculate the mean coursework for all 15 students. (11) 10 students are selected, which their coursework is 57, 55, 21, 46, 50, 34, 15, 33, 59, 47. Calculate the sample mean and sampling error for the selected students.
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