Statistics, Data Analysis and Probability for Grade 11, Problem ID: 1620

Statistics, Data Analysis and Probability K11A chip is placed at the bottom left corner square of a 5 x 5 grid.
The chip is moved one space upwards or to the right. One of the directions is randomly chosen, for example, by flipping a fair coin.

Find the probability that the chip reaches the center square of the grid in 4 moves.


1 / 45 / 16 3 / 81 / 5