In 1905, R. Pearl published the article “Biometrical Studies on Man. I. Variation and Correlation in Brain Weight” (Biometrika, Vol. 4, pp. 13–104). According to the study, brain weights of Swedish men are normally distributed with mean 1.40 kg and standard deviation 0.11 kg. Apply the 68.26-95.44-99.74 rule to fill in the blanks.
a. 68.26% of Swedish men have brain weights between and______.
b. 95.44% of Swedish men have brain weights between and______.
c. 99.74% of Swedish men have brain weights between and______.
d. Draw graphs similar to those in Figure to portray your results.