Drag sliders for the probability of success "p" and number of trials "n" The kth bar represents the probability of succeeding exactly k times out of n. Try this: drag the sliders to display the distribution that would represent a [b]12 question multiple choice test[/b] with [b]4 answer choices[/b]. What is the [i]most likely[/i] # of questions a student would get right if they guessed randomly? What are the approximate chances that they would get[i] more than half[/i] of the questions correct if guessing randomly?
www.scottfarrar.com/blog @farrarscott