Lisa and valerie are picnicking in troughcreek state park in pennsylvania. lisa has bought a salad that she made with 3/4 cup of strawberries, 7/8 cup of peaches, and 1/6 cup of blueberries. they ate 11/12 cup of salad. about how many cups of fruit salad are left?

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.