# Pls help s2 question urgentWatch

#1
If X is a random variable that represents the waiting time (uniform distribution) of a person.

and they said that a person already waited for five minutes, do we put p(X>5) or p(X<5)?
0
4 weeks ago
#2
p(x>5) means waited for more than 5mins
0
#3
yeah I know that but what I meant was why when the question says that a person already waited 5 minutes they use p(x>5)
(Original post by mqb2766)
p(x>5) means waited for more than 5mins
0
4 weeks ago
#4
(Original post by IGCSEsurvivor)
yeah I know that but what I meant was why when the question says that a person already waited 5 minutes they use p(x>5)
0
4 weeks ago
#5
p(***|X>5)
Means probability of *** given that X > 5 (waited 5 mins)
(Original post by IGCSEsurvivor)
yeah I know that but what I meant was why when the question says that a person already waited 5 minutes they use p(x>5)
1
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