If 33 laptops cost 30,000, what proportion could be used to determine the cost of 11 laptops?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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.

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola