The lifespans of seals in a particular zoo are normally distributed. The average seal lives 13.8 years, the standard
deviation is 3.2 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a seal living less than 7.4 years.
%

The trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? a) 48 cm2; 32 cm2; 80 cm 2 b) 48 cm2; 16 cm2; 64 cm 2 c) 128 cm2; 32 cm2; 160 cm 2 d) 128 cm2; 16 cm2; 144 cm 2