2. A 2016 study gives the mean and standard deviation of a fish's length in centimeters for a variety of fish species. For the northern pike, the mean length was 67.0 cm with a standard deviation of 2.8 cm. For the brook trout, the mean length was 32.2 cm with a standard deviation of 7.0 cm. Which is longer relative to other fish of the same species: a northern pike that is 74 cm long or a brook trout that is 53.2 cm long? The northern pike is relatively longer since it has the larger z-score. The brook trout is relatively longer since it has the larger z-score. The northern pike is relatively longer since it has the smaller z-score. The brook trout is relatively longer since it has the smaller z-score.