Question

problaity getting a yellow balls from a bag containing 6 blue balls and 4 yellow balls

Answer 1

total outcomes=6+4=10
no. of favourable outcomes=4
p(getting a yellow ball)=4/10=2/5

Answer 2

Given:
blue ball =6
yellow ball =4
probability = sum of observation / total no.of observation
yellow ball= 4/10
=2/5