Question 1189418
z boys=(2.5-3.41)/0.55
=-1.65
probability is 0.049 or 4.9th percentile
-
z girls=(2.5-3.29)/0.52
=-1.52 
probability is 0.0644 or 6.4th percentile
it is more extreme for boys, since it is at a lower percentile or further from the standardized mean.