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The data in the following table reflect the amount of time 40 students in a section of Statistics 101 spend on homework each day: Determine the value that should be entered in the relative frequency column for the class 45-59. Homework time (minutes) Number of students Relative frequency 0-14 2 15-29 4 30-44 10 45-59 16 60-74 6 75-89 2
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Provide the requested table entry. The data in the following table reflect the amount of time 40 students in a section of Statistics 101 spend on homework each day. Determine the value that should be entered in the relative frequency column for the class 15-29. 4 4% 0.1 10%
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The data in the following table reflect the amount of time 40 students in a section of Statistics 101 spend on homework each day. Minutes frequency x x - μ (x - μ)² x² 0-14 2 15-29 4 30-44 10 45-59 16 60-74 6 75-89 2 Table 1 a. Fill in the blank in Table 1 (16 marks) b. Calculate Variance. (2 marks) c. Calculate Standard Deviation. (2 marks) (Total : 20) 2. Find the standard deviation for the following frequency distribution. Length (mm) frequency 10-12 3 13-15 6 16-18 12 19-21 9 22-24 2 Table : 2 (10 marks)
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