Suppose there are n lily pads located on a unit circle, and a frog initially is sitting on one of them at time = 0. Every minute this frog will make a jump to the lily pad that is next to it, either to the left or to the right with probability = 1/2. Find the expected time in minutes for this frog to visit every lily pad on the unit circle.
What is a regression graph. What is the regression graph called.
You flip a weighted coin that comes up Heads 40% of the time and Tails 60%. If you flip this coin 5 times, what is the probability that you see at least 3 Tails, rounded to the nearest percent?
statistical and programming questions
Min cost to climb the stairs (DP). I think a same problem exists on Leetcode.
A really difficult DP question, a more straightforward algorithm question about finding permutations, and a very difficult question about conditional probability and joint distributions.
questions on linear regression and statistics
Longest increasing subsequence Some sliding window hard
What would happen to the variance of whole data if the whole data is duplicated.
how to speed up a for loop ...
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