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The ages (in days) at time of death for samples of 11 girls and 16 boys who died of sudden infant death syndrome are shown in Table E2.17. Calculate the mean x, variance s2, and standard deviation s for each group.
TABLE E2.17
Females
Males
53
46 115
56
52 133
60
58 134
59 175
78
77 175
87
102
80
117
81
134
84
160
103
277
114
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