Answer: Sum of all probability is (b) 1 Ex:Like probability of some event to happen 1/2 probability of event not to happen = 1/2 So sum of these probability =1/2+1/2= 2/2=1 Please mark me as brainliest Plsss…. Reply
Step-by-step explanation: option (b)
1 is the answer for above question
Answer:
Sum of all probability is (b) 1
Ex:Like probability of some event to happen
1/2
probability of event not to happen = 1/2
So sum of these probability =1/2+1/2=
2/2=1
Please mark me as brainliest
Plsss….