Math 253 - Chapter 4 Problems

# Math 253 - Chapter 4 Problems - Chapter 4 Problems Problem...

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Chapter 4 Problems Problem 5 The distribution is be-modal with peaks at 1 and at 7 days. It is skewed to the right with a fairly long tail and some outliers. However, the peak at 1 day is probably due to incorrect diagnoses. Some of those events would extend into 2 day stays. If those are removed, then there is a unimodal distribution with a peak at 7 days, a median at about 8 day, and an IQR of about 6 days. Problem 6 This distribution is unimodal, with the mode near 1. The distribution is skewed to the right with one outlier far to the right. Most students sent five or fewer e-mails. Problem 12 Sorted Display Raw Data Data a) 79 45 8 80 48 8 000000122 80 64 7 8899 80 70 7 0344 74 73 6 80 74 6 4 80 74 5 79 78 5 64 78 4 58 78 79 73 79 b) Unimodal with outliers. The distribution 78 80 is skewed to the left (low end). 74 80 45 80 c,d) He normally played in about 80 games. 81 80 The three seasons with fewer games 48 80 might be because of injuries. 80 80 82 81 82 82 70 82

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Problem 14 Sorted Display Raw Data Data 228 152 a) 22 8 178 153 21 186 153 20 66 162 156 19 183 157 18 136 160 160 17 578 206 160 16 0022367 181
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