Identify who and what were investigated and the population of interest. a study found that after a meal, a woman can tell whether a man is married or single by looking at his face. the study involved 40 undergraduate women who were asked to guess the marital status of 80 men based on photos of their face. half of the men were married, and the other half were single. all held similar expressions in the photos. all the women had eaten the same meal at the time of the test. the result was that the closer a woman was to her last meal, the more accurate her guess.
(a) the 40 married men
(b) the 80 men whose faces were used in this study
(c) the 40 undergraduate women
(d) the 40 single men
(e) the researchers in the study
(f) the who is not specified

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled