At a local PTA meeting, a sample of parents were surveyed to determine how many children they currently had attending school. Their results are shown in the frequency table below:
Number Number
of
Determine the mean, median, and standard deviation for this sample. Round
of
any non-integer answers to the nearest tenth.
Children Families
1
16
2
24
3
8
4.
3
Determine how many of the 55 families surveyed have a number of children
that was within one standard deviation of the mean. Show your analysis,
5
2
7
2.