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
|
|
60
|
59 175
|
|
78
|
77 175
|
|
87
|
78
|
|
102
|
80
|
|
117
|
81
|
|
134
|
84
|
|
160
|
103
|
|
277
|
114
|