Question

if you have the numbers 1,4,5 and 8 in in a box and Kelly randomly chose one tile and placed it back and chose another tile what is the probability of the two chosen tiles is greater than 7

Answer 1

hello

to solve this question, we need to use know the number of possible outcomes

$\begin{gathered} \text{probability = }\frac{nX}{nS} \\ S=\text{ number of possible outcomes} \\ X=\text{ number of events} \end{gathered}$

let's find the number of possible outcomes

we have four tiles numbered 1, 4, 5 and 8

possible outcomes are

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