15 points!
use the graph to fill in the blank with the correct number.
f(−2) =
x, y graph. plotted points negative 3, 0, negative 2, 2, 0, 1, and 1, negative 2.
numerical answers expected!
answer for blank 1:

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.