Suppose a stock had an initial price of $74 per share, Paid a dividend of $.80 per share during the year, and had an ending share of price of $77. What was the capital gains yield?

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.