Figure P, the small rectangle, was dilated with the origin as the center of dilation to create Figure Q, the large rectangle,
Which rule best represents the dilation that was applied to Figure P to create Figure
Q?

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.