If you randomly pick a 3-digit number, what's the probability that all 3 digits are even numbers?
Junior Trader Interview Questions
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Questions about coins and probabilities.
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What is 45*69?
1. mental calculate 1+3+...+99 2. coin flip problems. expectation. 3. hour hand-min hand angle.
1. Sum of two normal dice. You want to get as close to the actual number as possible. What would be your strategy? What’s the expected value of that? 2. How sure are you? 3. Would you bet … against …? For example, would you bet 5 pounds for your answer being right. If you get it correct, you get back 20 pounds. etc. (They worked out so that using your confidence in question 2, the expected value of the gambling game in question 3 is exactly 0)
Given a 6 sided die you roll once and are given $n where n is the number rolled. What is your EV? If you dont like your roll you can roll again. Whats your EV now? You can reroll 1 more time. What is your EV?
Incredibly challenging math.
What is 5^5
What is the predicted value for a game where you roll a fair dice and get the number face up in dollars
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