In triathlons, it is common for racers to be placed into age and gender groups. friends leo and mary both completed the hermosa beach triathlon, where leo competed in the men, ages 30 - 34 group while mary competed in the women, ages 25 - 29 group. leo completed the race in 1: 22: 28 (4948 seconds), while mary completed the race in 1: 31: 53 (5513 seconds). obviously leo finished faster, but they are curious about how they did within their respective groups. can you them

Given : Men's division : 4313 seconds with a standard deviation of 583 seconds

Ladies' division : 5261 seconds with a standard deviation of 807 seconds

Leo completed the race : 4948 seconds

Mary completed the race : 5513 seconds

Leo : Z=4313-4948/583=-1.0892

Mary : Z= 5261-5513/807=-.3123

They both ran below the mean. Leo, more than one standard deviation while Mary was not even a half a SD below the mean.

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.