Answer: 7/20
Explanation:
Cans of red paint= 3
Cans of blue paint= 7
Cans of yellow paint= 2
Cans of green paint= 8
Total cans of paint= 3+7+2+8 = 20
Probability of Irma choosing one blue paint will be total number of paints divided by the total cans of paints.
= Cans of blue paint / Total cans of paint
= 7/20