I have cards with the numbers one through 20 on them. For each number there are four cards each with a different color. What is the probability of picking the number for?

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Which one is true about the hexagons ?

Which of the following transformations will always produce a congruent figure?