Select the best answer for the question.
1. which of the following statements about th
o a. number lines can't you compare nume
o b. numbers get larger as you move to the left
o c. numbers get smaller as you move to the le
o d. number lines end with the number 10.

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.