interview questions shared by candidates
Why should I pay you salary? Yes, that will be the most unexpected question. Right after I joined the training, a friend who recommended me (working at a big s/w company, I cannot disclose because he is under the threat from this company) was not paid his routine salary - it was promised he will be paid a bonus. But the bonus was 3,000 first year and last year he didn't get paid. He went and asked the owner, the owner's question was "why should I pay you? You are doing a crappy job there". My friend asked me to leave if possible. I did!
1. What is the Central Limit Theorem? 2. If X is a Random Variable distributed with mean u_x, Variance s^2_x and Y is an independent Random Variable distributed with mean u_y, variance s^2_y. Define Z as X*Y, what is the expected value of Z? what is an approximation of the variance of Z? 3. In SAS, how would you define a macro that accepts one parameter that is a dataset name and prints the first 10 observations from that dataset? 4. How would you define the revenue per 1000 impressions (rpm) of a certain ad as $1.50. Let the cost per 1000 impressions (cpm) of that ad be variable but define the volume (impressions) = 100000*cpm^2 Define the profit per 1000 impression as rpm – cpm?