Abstract
A survey item based on a newspaper article about coin tosses was administered to 1256 students from grades 6 to 11. Few students determined the probability of four successive tails. Most students considered that heads and tails were equally likelyfor a subsequent fifth toss, often describing the probability as "50-50". Students in higher grades were more likely to respond appropriately. Results are discussed with reference to equiprobability, independence, the gambler'S fallacy, and the outcome approach to probability
Jonathan Moritz & Jane Watson
Reasoning And Expressing Probability In Students’ Judgements Of Coin Tossing