S11 probability question helpWatch

Announcements
#1
Members of a wine tasting club are all married couples.
Prob that husband is retired = 0.7
Prob that wife is retired = 0.4
Prob that husband is retired | wife is retired = 0.8
For a randomly chosen couple, find the probability that both are retired
I've worked out that I need to get the probability of wife retired | husband retired but how do I get it? I need to find wife retired intersection husband retired for that and I can't do that because that's the question
0
5 years ago
#2
(Original post by JacobAlevels)
Members of a wine tasting club are all married couples.
Prob that husband is retired = 0.7
Prob that wife is retired = 0.4
Prob that husband is retired | wife is retired = 0.8
For a randomly chosen couple, find the probability that both are retired
P(H)=0.7
P(W)=0.4
P(H | W)=0.8

You want P(H n W) or P(W n H) as you want the probability that the husband and wife are retired.

S11
0
X

new posts
Latest
My Feed

Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

University open days

• SOAS University of London
Wed, 29 May '19
• University of Exeter
Thu, 30 May '19
• Cranfield University
Cranfield Forensic MSc Programme Open Day Postgraduate
Fri, 31 May '19

Poll

Join the discussion

Loved the paper - Feeling positive (200)
22.57%
The paper was reasonable (402)
45.37%
Not feeling great about that exam... (165)
18.62%
It was TERRIBLE (119)
13.43%