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]多项填空题

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