The container that holds the water for the football team is 1/6 full. after pouring in 7 gallons of water, it is 1/2 full. how many gallons can the container hold?

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.

A+b= 17, ab=70, find the value of |a-b|

Which situation is an example of an observational study?