Quote:
a guy walks into the store and steals $100 bill from the register without the owner's knowledge. he comes back 5 minutes later and buys $70 worth of goods with the $100 bill. the owner gives him back $30 in change. how much money did the owner lose?

Standard deviation of 19,29,21,22,23

What is the value of x when x + 7 = 21?

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.