PLEASE HELP ME Mark has just became a historian at one of the National Museums in New York. Out of curiosity, he partnered with 5 other museum employees at 5 other museums and conducted research to find out how many men versus women visited the museums last month. What is the probability that a visitor, chosen at random, is a man who visited Museum 3? Enter your answer as a percent to 2 decimal places, such as: 42.53%

What are “like terms”? why can we only add like terms?

If i have 20$ and i gave 5$ away how much i got

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.