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Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

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.

Math question.. plz me .. best answer all