Question

Mrs Mullins is using a random number generator to call students. It uses the numbers 1-30. What is the probability that it will pick the number 8 two times in a row

Answer 1

1 in 900, or 0.00111, or 0.11%

Explanation:

Assuming that the likelihood of each number being called is equal, there is a 1 in 30 chance that the number 8 will be called each time. The probability that 8 is picked twice in row is given by:

`P=(1)/(30)* (1)/(30)\\P=(1)/(900)= 0.00111=0.11\%`

There is a 1 in 900 chance, or 0.00111, or 0.11%.