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If you know for certain that a friend of yours has 2 children and that atleast one of them is a boy, what is the probability that the other is also a boy?

Data Scientist

DigitalOcean

ASML

Calm

Adyen

Coursera

Qualcomm

If you know for certain that a friend of yours has 2 children and that atleast one of them is a boy, what is the probability that the other is also a boy?
Let's say you have a friend who has two children, and they tell you that at least one of them is a boy. What's the probability that the other one is a boy?
Based on what you know, do you think it's more likely or less likely that your friend's other child is also a boy?
You have a friend who has two kids. They tell you that they have at least one boy. What do you think are the odds that the other child is also a boy?
Can you figure out the probability of your friend having two boys, given that you know for certain that they have at least one boy?
Imagine your friend has two children, and they specifically mention to you that one of them is a boy. What is the likelihood that the other child is also a boy?
Your friend has two kids, and they mention to you that they have at least one boy. What's the chance that the other one is also a boy?
Given what you know about your friend having two kids and at least one of them being a boy, what is the possibility that the other child is also a boy?
Assume that your friend has two children and tells you that at least one of them is a boy. What is the probability that the other one is a boy as well?
If your friend has two children and they tell you that they have at least one boy, what are the odds that the other child is also a boy?
If your friend has two kids and you know for sure that one is a boy, what are the chances that the other one is also a boy?

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Interview question asked to Data Scientists interviewing at Qualcomm, Noom, Coupang and others: If you know for certain that a friend of yours has 2 children and that atleast one of them is a boy, what is the probability that the other is also a boy?.

If you know for certain that a friend of yours has 2 children and that atleast one of them is a boy, what is the probability that the other is also a boy?

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