Tag: independence

Interview Questions

• Expected product of two four-sided dice
• Expected value of a die times a coin
• Expected product of two mismatched spinners
• Expected product of three dice
• Expected product of two dice
• At least one head in five flips
• At least one six when rolling three dice
• At least one six in four rolls
• The eldest is a girl, are all three?
• Are "first die even" and "sum is seven" independent?
• Getting paid the product of two dice
• Does the ticket number contain a seven?
• Is "heart" independent of "face card"?
• Independent in pairs, but not all together
• A random pizza with exactly three toppings
• Splitting an email stream into spam and real
• A chain that fails if any link breaks
• Uncorrelated but utterly dependent
• A point on a circle, zero correlation, total dependence
• Are the sum and difference of two dice independent?
• Three coworkers, three different birth months?
• Two servers, one website, better uptime
• Does the signal predict the market? A chi-squared test of independence