题目
STAT0004_25-26 Monday Dec 8th ICA - ALL GROUPS (12:10-12:50)
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Question text A sample of 30 students taking a test have marks: 14 2 26 11 19 5 23 9 13 16 20 21 4 22 30 15 12 1 10 25 6 18 11 3 7 8 11 28 26 29 For all the questions below, give your answers to 2 decimal places. a. What is the mode of the marks? b. What is the median of the marks? c. What is the sample standard deviation of the marks? d. Compute the mean of all values which are strictly below 15. Answer 1 Question 4[input] Answer 2 Question 4[input] Answer 3 Question 4[input] Answer 4 Question 4[input]
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思路分析
We are given a data set of 30 marks and four sub-questions (a–d) requiring numerical answers to 2 decimal places. I will evaluate each item in turn and explain why the result shown for that item is correct.
a. What is the mode of the marks?
- The mode is the value that occurs most frequently in the data set. Scann......Login to view full explanation登录即可查看完整答案
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