Reference no: EM1323290
Q1) In class of 10 students, 3 didn't do their homework. Professor chooses half of class to present solutions to homework problems on board, and records how many of those selected didn't do their homework. Determine expected value of students selected that don't have their homework done?
i) .33
ii) 1.5
iii) 3
iv) 5
Q2) Determine the mean, median, and mode for data set:
12.75, 18.32, 19.41, 12.75, 18.30, 19.45, 19.33
i) Mean: 17.19, Median: 12.75, Mode: 12.75
ii) Mean: 18.32, Median: 17.19, Mode: 12.75
iii) Mean: 17.19, Median: 18.32, Mode: 12.75
iv) Mean: 17.19, Median: 19.41, Mode: 19.45
Q3) Determine the range, variance, and standard deviation for data set:
15, 42, 53, 7, 9, 12, 28, 47, 63, 14
i) Range: 56, Variance: 424.4, Standard Deviation: 20.6
ii) Range: 63, Variance: 56, Standard Deviation: 20.6
iii) Range: 56, Variance: 424.4, Standard Deviation: 212.2
iv) Range: 29, Variance: 56, Standard Deviation: 7.5
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