Answer:
P( cinder cones ) = 13/37
P ( shield ) = 18/37
P ( stratovolcanoes) = 6/37
Explanation:
We need to find the total number of volcanoes
13 +18 + 6 = 37
P( cinder cones ) = number of cinder cones/ total = 13/37
P ( shield ) = number of shield /total = 18/37
P ( stratovolcanoes) = number of Strato /total = 6/37