Interval Estimation Test
Prepare for Intervals, the fourth stage of the Optiver online assessment: give a lower and an upper bound, and learn how tight to make them.
Realistic test mode
SaveThis test is designed to prepare you for Intervals, the fourth stage of the Optiver online assessment. You will face 4 estimation questions, each with its own 45-second clock. Some ask you to bound a probability between 0 and 1, some show a picture and ask you to bound a count, and some ask for a quick numeric estimate. For every question you give a lower and an upper bound. At 45 seconds a question there is no time to both calculate and estimate, so decide first whether the value can be worked out exactly or needs an estimate.
Question types and run settings unlock with Premium. The example test is the same fixed set of questions for everyone.
This is a short 4-question example. Premium members get the full 15-question test in 12 minutes.
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