The noon temperature on July 4 in two cities, A and B, is normally distributed with respective means μ_A and μ_B and standard deviations σA and σ_B. For each of these three cases, identify the city that has the higher probability of a noon July 4 temperature above 100°.

a. μ_A = 80, σ_A = 20, μ_B = 80, σ_B = 30.

b. μ_A = 80, σ_A = 20, μ_B = 70, σ_B = 20.

c. μ_A = 80, σ_A = 20, μ_B = 70, σ_B = 30.