OCR Stats 1 2018 September — Question 14

Exam BoardOCR
ModuleStats 1 (Statistics 1)
Year2018
SessionSeptember
TopicDiscrete Probability Distributions
TypeModal value or most probable value

14 A counter is initially at point \(O\) on the \(x\)-axis. A fair coin is thrown 6 times. Each time the coin shows heads, the counter is moved one unit in the positive \(x\)-direction. Each time the coin shows tails, the counter is moved one unit in the negative \(x\)-direction. The final distance of the counter from \(O\), in either direction, is denoted by \(D\). Determine the most probable value of \(D\). \section*{END OF QUESTION PAPER} \section*{OCR
Oxford Cambridge and RSA}