In the solid figure below, what is the volume of the left section of the figure? 2 m
1 m
6 m
4 m
3 m
8 m
4 m
3
96 m
o
84 m m 3
72 m 3

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.